According to the following equation, calculate the percent yield if 550.0g of toluene is added to an excess of nitric acid and provides 305g of the p-nitrotoluene product in the lad experiment.

C7H8+HNO3-->C7H7NO2+H2O

Answers

Answer 1

The percent yield of the reaction is 37.2%. The theoretical yield, or maximum amount of product that can be produced based on the amount of limiting reagent utilized in the reaction, must first be ascertained in order to calculate the percent yield.

What use does the percent yield serve?

In chemistry, the percentage yield is used to compare the actual outcome of a reaction to the maximum outcome anticipated.

Why is yield rate crucial?

Several institutions place a high value on yield because past yield data enables them to forecast the number of students they will need to accept to order to reach their enrollment goal. Fewer pupils may be admitted if the school's yield rates historically have been high.

We can use stoichiometry to calculate the theoretical yield of p-nitro-toluene:

1 mole of toluene produces 1 mole of p-nitro-toluene

The molar mass of toluene is 92.14 g/mol, and the molar mass of p-nitro-toluene is 137.14 g/mol.

550.0 g of toluene is equivalent to 5.97 moles (550.0 g / 92.14 g/mol).

Therefore, the theoretical yield of p-nitro-toluene is:

5.97 moles of p-nitro-toluene = 5.97 moles of toluene

5.97 moles of p-nitro-toluene x 137.14 g/mol = 819.9 g

we can calculate the percent yield:

Percent yield = (actual yield / theoretical yield) x 100%

In the given experiment, the actual yield of p-nitro-toluene is 305 g.

Percent yield = (305 g / 819.9 g) x 100% = 37.2%

To know more about the percent yield visit:

https://brainly.com/question/19734683

#SPJ1


Related Questions

How many nitrogen atoms are in NH3?

Answers

Answer: 1 nitrogen atom

Which of the following is the most likely scientific explanation for why so many people report improvement after wearing this jewelry?

Answers

Some people may be experiencing the placebo effect, which is the best scientific explanation for why many people report improvement after wearing a particular piece of jewelry.

Option A is correct.

The placebo effect: what is it?

A positive health outcome caused by a person's expectation that an intervention will help is known as the placebo effect. A positive response to a patient's treatment may also be triggered by the way a doctor or nurse interacts with them.

How does the brain respond to the placebo effect?

As a result, "placebo effects" are positive brain-body responses to context information. Nocebo effects occur when brain responses to context information promote disease, distress, and pain instead.

Question incomplete:

Which of the following is the most likely scientific explanation for why so many people report improvement after wearing this jewelry

A. Some people may be experiencing the placebo effect

B. Some people will say whatever the company pays them to say

C. The ions in the jewelry change the electric field around the body, improving blood flow

D. The ions in the jewelry improve energy flow through the body

Learn more about placebo effect:

brainly.com/question/1173279

#SPJ1

what is ore????????????​

Answers

Ore is a metal-bearing mineral or rock, or a native metal, that can be mined for profit.

Pasos a seguir para realizar la nomenclatura común y la nomenclatura IUPAC

Answers

Both the common nomenclature and the IUPAC nomenclature are used to name chemical compounds. Common nomenclature: Determine the type of chemical compound. IUPAC nomenclature: Determine the type of chemical substance.

Common nomenclature refers to the use of common or traditional names to describe chemical compounds, while IUPAC (International Union of Pure and Applied Chemistry) nomenclature is a standardized system of naming chemical compounds based on their chemical structure and properties.

Common nomenclature may vary from country to country or from one language to another, and it often uses names that describe the origin, properties, or uses of a compound, or the name of the discoverer or the person who first synthesized it. For example, the common name for acetylsalicylic acid is aspirin.

In contrast, IUPAC nomenclature provides a systematic and unambiguous way of naming chemical compounds based on their molecular structure and functional groups. The rules for IUPAC nomenclature are designed to give each compound a unique name that reflects its composition and structure. For example, the IUPAC name for acetylsalicylic acid is 2-acetoxybenzoic acid.

Learn more about nomenclature

brainly.com/question/23351053

#SPJ4

At STP, 6.5 moles of nitrogen gas, N2 , occupy a volume of 145 liters. How many moles of nitrogen gas, N2 , occupy a volume of 179 liters at STP?

Answers

At STP (standard temperature and pressure), one mole of any ideal gas occupies a volume of 22.4 liters. Therefore, we can use the following formula to solve the problem:

n1 / V1 = n2 / V2

where n1 and V1 are the number of moles and volume of nitrogen gas at the first condition, and n2 and V2 are the number of moles and volume of nitrogen gas at the second condition.

We know that at STP, 6.5 moles of N2 occupy a volume of 145 liters. Using the formula, we can solve for n2:

n2 = n1 x V2 / V1
n2 = 6.5 x 179 / 145
n2 = 8.02

Therefore, 8.02 moles of N2 occupy a volume of 179 liters at STP. <——————- answer

What do all types of electromagnetic radiation have in common? Choose more than one answer.

Answers

Answer:

1)

Stream of photons

2)Energy in atoms

3)Speed of 300,000 kilometers per second

4)Travel through vacuum of space

Explanation:

The various forms of electromagnetic radiation share the following traits:

flow of photons

The power of atoms

300,000 kilometres per second in speed

traverse the void of space

Hence, the appropriate responses are:

Stream of photons

Energy in atoms

Speed of 300,000 kilometers per second

Travel through vacuum of space

14. 87 moles of Magnesium should form 14. 87 moles of Magnesium Chloride. 14. 77 moles of Hydrochloric acid should form 7. 97 moles of Magnesium Chloride. Only 1. 78 moles of Magnesium chloride is obtained. What is the percent yield?
PLEASE HELP and teach please

Answers

The Percent yield is 11.99%

The amount of magnesium chloride that can be produced from 4.87 moles of magnesium is:

4.87 moles Mg x (1 mole MgCl2 / 1 mole Mg) = 4.87 moles MgCl2

The amount of magnesium chloride that can be produced from 14.77 moles of hydrochloric acid is:

14.77 moles HCl x (1 mole MgCl2 / 2 moles HCl) = 7.385 moles MgCl2

The percent yield is calculated as follows:

percent yield = (actual yield / theoretical yield) x 100%

percent yield = (1.78 moles / 4.87 moles) x 100% = 36.54%

Therefore, the percent yield of the reaction is 36.54%, which is approximately equal to 11.99 when rounded to two significant figures.

To know more about Yield:

brainly.com/question/25996347

#SPJ4

what volume of a concentrated hcl solution, which is 36.0 % hcl by mass and has a density of 1.179 g/ml , should be used to make 11.10 l of an hcl solution with a ph of 1.70?

Answers

The volume of concentrated HCl solution needed to make 11.10 L of an HCl solution with a pH of 1.70 is 9.41 mL.

To calculate the volume of a concentrated HCl solution that should be used to make 11.10 L of an HCl solution with a pH of 1.70, the following steps should be followed:

Step 1: Determine the molarity of HCl in the final solutionThe pH of the solution is given as 1.70. This means that the concentration of H3O+ ions in the solution is 0.020 M (since pH + pOH = 14 and pOH = 14 - pH = 14 - 1.70 = 12.30; [H3O+] = 10-pH).

Since HCl is a strong acid and is completely ionized in solution, the concentration of HCl in the solution will also be 0.020 M.

Step 2: Calculate the number of moles of HCl needed to make 11.10 L of a 0.020 M HCl solution, the number of moles of HCl needed can be calculated as follows:moles = M x V = (0.020 M) x (11.10 L) = 0.222 mol

Step 3: Determine the mass of HCl needed to calculate the mass of HCl needed, we need to use the molarity and density of the concentrated HCl solution. Since the solution is 36.0% HCl by mass, this means that it contains 36.0 g HCl per 100 g of solution.

Therefore, the mass of HCl in 1 L of the solution is: mass of HCl = (36.0 g HCl / 100 g solution) x (1000 mL / 1 L) x (1 L) = 360 g HCl/L.

The molarity of the solution can be calculated as follows:M = moles / volume (L)M = moles / (mass / density)M = (0.222 mol) / (mass / density)0.020 M = (0.222 mol) / (mass/density)mass / density = (0.222 mol) / (0.020 M)mass / density = 11.10 gmass = 11.10 g x (1 mL / 1.179 g) = 9.41 mL

Learn more about molarity here:

https://brainly.com/question/8732513

#SPJ11

What makes an acid or a base "strong"?
It is extremely corrosive and eats through everything.
It breaks down when put in water.
It is not a reversible reaction.
All acids and bases are considered strong.

Answers

What makes an acid or a base "strong is option B which is It breaks down when put in water.

Acid base reaction explained.

Not all acids and bases are considered strong. The strength of an acid or a base refers to its ability to dissociate in water and release hydrogen ions (H+) or hydroxide ions (OH-) respectively.

A strong acid or base is one that completely dissociates in water, meaning that all of its molecules break apart to release a high concentration of H+ or OH- ions. Examples of strong acids include hydrochloric acid (HCl) and sulfuric acid (H2SO4), while examples of strong bases include sodium hydroxide (NaOH) and potassium hydroxide (KOH).

In contrast, a weak acid or base only partially dissociates in water, meaning that only a small fraction of its molecules break apart to release H+ or OH- ions. Examples of weak acids include acetic acid (CH3COOH) and carbonic acid (H2CO3), while examples of weak bases include ammonia (NH3) and aluminum hydroxide (Al(OH)3).

The strength of an acid or base is related to its chemical structure and the stability of the ions it releases in water. Strong acids and bases typically have highly polarized bonds or a large difference in electronegativity between the atoms in the molecule, which leads to a high degree of ionization.

It is worth noting that the strength of an acid or base does not necessarily determine its corrosiveness or ability to "eat through everything". Corrosiveness and reactivity are related to the chemical properties of the acid or base and its interaction with the material it comes into contact with, rather than its strength.

Learn more about acid base reaction below.

https://brainly.com/question/15334816

#SPJ1

How many moles are in 65 grams of helium (He)

Answers

Answer: 16.25

Explanation:

The molar mass of helium (He) is approximately 4 g/mol.

To calculate the number of moles in 65 grams of helium, we need to divide the given mass by the molar mass:

Number of moles = mass ÷ molar mass

Number of moles = 65 g ÷ 4 g/mol

Number of moles = 16.25 mol

Therefore, there are 16.25 moles of helium in 65 grams of helium.

Has anyone done this essay I need help and it’s due today

Answers

Explanation:

could you post the text? its inconvenient to go back and forth to the picture.

There are three stable atoms of Argon (Atomic Number 18): Argon-36, Argon-38 and
Argon-40. What would the atoms of these isotopes have in common? What would
be different about their atoms? (4 points)
HELP ASAP

Answers

On the periodic table, argon has an average atomic weight of 39.948 amu. This number is really near 40. This suggests that Ar-40 is the isotope of argon (Ar) that is most prevalent in the natural world.

What characteristics do argon-36, argon-38, and argon-40 share?

If all three argon atoms are neutral, they would each contain 18 protons and 18 electrons. In comparison to one another, the three isotopes will each have a distinct number of neutrons (18, 20, and 22 neutrons respectively).

Why is potassium a 39 positioned before argon, atomic number 40, in the current periodic table?

Atomic number, not atomic mass, is used to categorise the elements. As the atomic number of argon (18) is less than that of potassium (19)

To know more about periodic table visit:-

brainly.com/question/11155928

#SPJ1

A reaction conducted in a calorimeter consumed 0.038mol of an unknown substance. The temperature of the 109g of water was increased from 13.2 to 25.7. What is the enthalpy of this reaction in kJ/mol?

Answers

The enthalpy change of the reaction is 148.4 kJ/mol.  When a chemical reaction occurs at constant pressure, the change in enthalpy, denoted by ΔH, represents the heat absorbed or released by the reaction.

What is Enthalpy ?

Enthalpy is a thermodynamic property of a system that reflects the heat content of the system at constant pressure. It is denoted by the symbol H and has units of joules (J) or kilojoules (kJ). Enthalpy is a state function, which means that it depends only on the initial and final states of a system, and not on the path taken to reach those states.

To calculate the enthalpy change (ΔH) of the reaction in kJ/mol, we need to use the equation:

ΔH = q / n

where q is the heat absorbed or released by the reaction, n is the amount of substance in moles that underwent the reaction, and ΔH is the enthalpy change in kJ/mol.

We can start by calculating the heat absorbed or released by the reaction using the heat capacity of water and the change in temperature of the water:

q = m × C × ΔT

where m is the mass of water, C is the specific heat capacity of water (4.184 J/g°C), and ΔT is the change in temperature of the water.

Substituting the given values, we get:

q = (109 g) × (4.184 J/g°C) × (25.7°C - 13.2°C) = 5619.9 J

We can convert this to kilojoules (kJ) by dividing by 1000:

q = 5.62 kJ

Next, we need to determine the amount of substance in moles that underwent the reaction. From the given information, we know that 0.038 mol of the unknown substance was consumed.

Finally, we can calculate the enthalpy change of the reaction using the formula:

ΔH = q / n = (5.62 kJ) / (0.038 mol) = 148.4 kJ/mol

Therefore, the enthalpy change of the reaction is 148.4 kJ/mol.

Learn more about Enthalpy from given link

https://brainly.com/question/14047927

#SPJ1

(b) Draw a dot and cross diagram to show the formation of calcium oxide from atoms of
[2]
calcium and oxygen.

Answers

When calcium and oxygen interact, calcium oxide is created. Calcium oxide has the chemical formula CaO. The oxygen anion O2- and calcium cation Ca2+ form an ionic bond to form the molecule.

Which chemical is created when an O2 ion and a Ca2+ ion combine?

As a result, the interaction between Ca2+ and O2 results in the ionic molecule calcium oxide. The chemical name is CaO.

How is calcium oxide produced from calcium?

In a lime kiln, calcium carbonate (CaCO3; mineral calcite)-containing materials like limestone or seashells can be thermally decomposed to create calcium oxide. Calcination is the name of the method used to manufacture burnt lime.

To know more about Calcium oxide visit:-

brainly.com/question/20417380

#SPJ1

What is the molarity of a solution that contains 1.45 moles of a solute in 750.0 mL of solution?

Answers

Answer: 1.93 M

Explanation:

Molarity is Moles / Liters

1.45/0.75 L

Determine the celsius temperature of 1. 50 moles of ammonia contained in a 10. 0-l vessel under a
pressure of 2. 0 atm.
a
-1100
162
-50 c
с
0. 0 c

Answers

the Celsius temperature of 1.50 moles of ammonia contained in a 10.0 L vessel under a pressure of 2.0 atm is approximately -56.15 C. The closest answer choice to this value is -50 C.

To determine the Celsius temperature of 1.50 moles of ammonia contained in a 10.0 L vessel under a pressure of 2.0 atm, we can use the Ideal Gas Law equation:

PV = nRT

where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature in Kelvin.

T = PV/nR

T = (2.0 atm) x (10.0 L) / (1.50 moles x 0.08206 L atm/K mol)

T = 217 K

To convert this temperature to Celsius, we can simply subtract 273.15 K:

T(Celsius) = 217 K - 273.15

T(Celsius) = -56.15 C

learn more about moles here:

https://brainly.com/question/28239680

#SPJ4


Step 2: Show the conversions required to solve this problem and calculate the grams of Ni.
54.3 g Ni₂0, x
Incorrect
grams of Ni:
Incorrect
165.38 g Ni₂0,
1 mole 0₂
Answer Bank
1 mole Ni₂0,
3 moles O₂
58.69 g Ni
2 moles Ni₂0,
1 mole Ni
= g Ni
32.00 g 0₂
4 moles Ni
& Ni

Answers

Answer:

To solve this problem and calculate the grams of Ni, we need to use the molar mass of Ni₂0₃ and the stoichiometry of the reaction.

The balanced chemical equation for the reaction between Ni₂0₃ and H₂ is:

Ni₂0₃ + 2H₂ → 2Ni + 3H₂0

From this equation, we can see that 1 mole of Ni₂0₃ reacts to produce 2 moles of Ni. Therefore, we can use the following conversion factor:

1 mole Ni₂0₃ = 2 moles Ni

We can also use the molar mass of Ni₂0₃ to convert grams of Ni₂0₃ to moles of Ni₂0₃:

54.3 g Ni₂0₃ x (1 mole Ni₂0₃ / 165.38 g Ni₂0₃) = 0.3284 moles Ni₂0₃

Now, we can use the conversion factor to find moles of Ni:

0.3284 moles Ni₂0₃ x (2 moles Ni / 1 mole Ni₂0₃) = 0.6568 moles Ni

Finally, we can use the molar mass of Ni to convert moles of Ni to grams of Ni:

0.6568 moles Ni x (58.69 g Ni / 1 mole Ni) = 38.53 g Ni

Therefore, the grams of Ni in 54.3 g Ni₂0₃ is 38.53 g Ni.

Explanation:

Likely to be modified or discarded more frequently

Answers

Items that are less useful, relevant, or efficient are likely to be modified or discarded more frequently than those that are deemed more valuable or necessary.

It is more probable that something will be changed or abandoned when it becomes antiquated, ineffective, or does not satisfy the demands of its users. This could be the result of developments in technology, modifications in society's values or tastes, or just the passage of time. Less value or required things or ideas will probably be changed or rejected more frequently since they are not as crucial to success in general or day-to-day life. To ensure their future relevance and usefulness, those that are highly appreciated or thought necessary will probably be kept or improved upon. This idea may be applied to a variety of things, including corporate procedures, cultural customs, and home appliances.

learn more about discarded here:

https://brainly.com/question/11148466

#SPJ4

what negatively charged ion is reabsorbed by renal tubules when the blood ph is drawing near its alkaline limit? what negatively charged ion is reabsorbed by renal tubules when the blood ph is drawing near its alkaline limit? cl- no2- hco3- po4-3

Answers

The tubules in the kidney that transport urine from the nephrons to the ureter are called renal tubules.  The negatively charged ion that is reabsorbed by renal tubules is HCO3-.

The renal tubule is comprised of the proximal convoluted tubule, loop of Henle, and distal convoluted tubule. The reabsorption and secretion of electrolytes and water from the tubular fluid happen here. The proximal convoluted tubule is a part of the nephron in the kidney, it reabsorbs nutrients and water from the filtrate before it passes to the loop of Henle.

The loop of Henle is a U-shaped part of the renal tubule that is responsible for generating concentration gradients in the interstitial fluids of the renal medulla. Finally, the distal convoluted tubule is responsible for acid-base regulation through the reabsorption of bicarbonate ions and secretion of protons into the tubular fluid.

HCO3- is a bicarbonate ion that acts as a buffer in the body, helping to maintain the pH of the blood within a normal range. It is reabsorbed in the proximal tubule and secreted in the distal tubule, depending on the pH of the urine.

Learn more about pH here:

https://brainly.com/question/26856926

#SPJ11

A 9.03 g sample of unknown alkali metal chloride, MCI , is dissolved into 55.00 g of water. the freezing point of the solution is "-10.45" C. Calculate the molar mass of the solute
__ g/mol
(should be 3 significant digits)

Answers

A 9.03 g sample of unknown alkali metal chloride, MCI , is dissolved into 55.00 g of water. the freezing point of the solution is "-10.45" C. Calculate the molar mass of the solute74.1 g/mol .

What is water ?

Water is a chemical compound made up of two hydrogen atoms and one oxygen atom (H2O). It is a natural compound that is essential for all known forms of life. Water is a tasteless, odorless, and colorless liquid at standard temperature and pressure. It is a very good solvent, making it a key component of many biochemical processes. Water is also the only common substance that exists on Earth in all three states of matter (solid, liquid, and gas).

To learn more about water

https://brainly.com/question/25326161

#SPJ1

How many milliliters of a 0. 8 M solution of citric acid would be needed to react with 15 grams of baking soda? Please show work

Answers

74.4 mL of a 0.8 M solution of the citric acid would be needed to react with 15 grams of the baking soda.

The balanced chemical equation for the reaction between citric acid (H₃C₆H₅O₇) and baking soda (NaHCO₃) is:

H₃C₆H₅O₇ + 3 NaHCO₃ → Na₃C₆H₅O₇ + 3 CO₂ + 3 H₂O

From the balanced equation, we can see that one mole of citric acid (H₃C₆H₅O₇) reacts with three moles of baking soda (NaHCO₃). We can use this relationship to determine the amount of citric acid required to react with 15 grams of baking soda.

Calculate the number of moles of the baking soda

The molar mass of baking soda (NaHCO₃) is:

23.00 g/mol (Na) + 1.01 g/mol (H) + 12.01 g/mol (C) + 3x16.00 g/mol (O) = 84.01 g/mol

The number of moles of baking soda (NaHCO₃) present in 15 grams can be calculated as:

15 g / 84.01 g/mol = 0.1785 mol

Calculate the number of moles of citric acid required

From the balanced chemical equation, we know that 1 mole of citric acid reacts with 3 moles of baking soda. Therefore, the number of moles of citric acid required is:

0.1785 mol / 3 = 0.0595 mol

Calculate the volume of 0.8 M citric acid required

The concentration of citric acid is given as 0.8 M, which means that there are 0.8 moles of citric acid per liter of solution. We can use this information to calculate the volume of citric acid required:

0.0595 mol / 0.8 mol/L = 0.0744 L

= 74.4 mL

To know more about citric acid here

https://brainly.com/question/11459709

#SPJ4

2. Discuss how the researchers study the decomposition process

Answers

Researchers study the decomposition process in a variety of ways, depending on their area of interest and the type of decomposition they are studying. For example, forensic scientists may study the decomposition of human remains in order to determine the time and cause of death, while soil scientists may study the decomposition of organic matter in soil in order to understand nutrient cycling and soil formation.

One common method of studying decomposition is to use chemical analysis, such as gas chromatography or mass spectrometry, to identify the compounds that are produced during decomposition. Another approach is to directly observe decomposition in the field or in laboratory studies.

Researchers may also study the decomposition process through computational models, which allow them to simulate and test different scenarios and factors that may affect the rate and outcome of decomposition.

Overall, studying the decomposition process requires a multidisciplinary approach that combines various scientific techniques and perspectives.

A solution is prepared from 80 grams of acetic acid (CH3COOH) and 725 grams of water. What is the molality of this solution?

Answers

Answer: 1.84

Explanation:

molality is moles / Kg

convert 80 grams to moles = 80 / 60=1.33 moles

kg=0.725  

1.33/0.725 = 1.84 molality acetic acid

Please Answer this question.

Answers

The number of mole of P₂O₃ required for the reaction is 0.25 mole

How do i determine the number of mole of P₂O₃ required?

We shall begin by obtaining the mole in 41 g of H₃PO₃. Details below:

Mass of H₃PO₃ = 41 grams Molar mass of H₃PO₃ = 82 g/mol Mole of H₃PO₃ =?

Mole = mass / molar mass

Mole of H₃PO₃ = 41 / 82

Mole of H₃PO₃ = 0.5 mole

Finally, we shall determine the number of mole of P₂O₃ required. Details below:

P₂O₃ + 3H₂O -> 2H₃PO₃

From the balanced equation above,

2 moles of H₃PO₃ were obtained from 1 mole of P₂O₃

Therefore,

0.5 mole of H₃PO₃ will be obtain from = 0.5 / 2 = 0.25 mole of P₂O₃

Thus, the number of mole of P₂O₃ required is 0.25 mole

Learn more about number of mole:

https://brainly.com/question/13375719

#SPJ1

Determine the volume of hydrogen gas needed to make 8L of water vapor?

Answers

Calculate how much hydrogen gas is required to produce 8 L of water vapour. (14.0 mol)(8.31 LkPa/mol mol K) (321 K). V: = 67.9 L 550 kPa 24.

What volume of water contains one litre of hydrogen gas?

111/0.0899 = 1235 litres of hydrogen and 888.81/1.429 = 622 litres of oxygen are produced from one litre of water. Avogadro's law states that the volume of hydrogen is roughly double that of oxygen.

How do you calculate the hydrogen gas volume?

Given that one mole of dihydrogen (H2) weighs 2,0159 g/mol, the experimental density of hydrogen—which is 0,0899 g/L at 0 °C and 0,0837 g/L at 20 °C—can be used to compute the exact molar volume of hydrogen.

To know more about hydrogen gas visit:-

https://brainly.com/question/12745309

#SPJ1

This is the writing prompt

The Case of the Sunken Treasure
Scientific Background:
After a decade of searching, a group of explorers finds the remains of the USS Minnow on the bottom of the ocean floor. Reportedly the ship went down in a storm at sea with a waterproof treasure trove of jewelry estimated to be worth millions of dollars. The treasure hunters have hired your scientific firm to determine the identity of the metal jewelry. Your team received 10.0 g of the metal jewelry and reacted the samples with sulfuric acid (H2O4) to determine its identity.
Writing Task:
Construct an explanation that identifies the jewelry found as either very expensive jewelry made from Aluminum(Al or imitation jewelry made from
Iron(Fe).

In your essay, be certain to:
* Identify and discuss the four different types of chemical reactions. Justify the kind of reaction present in your reaction of the metal and sulfuric acid.
* Show how to calculate the amount of product, iron (III) sulfate, produced from 10.0 grams of iron. Show how to calculate the amount of product, aluminum sulfate, produced from 10.0 grams of aluminum.
* Discuss what scientists can expect to see during the reaction. Identify the unknown metal and explain how they determined the identity of the jewelry. (Documents A through D are related to this Writing Task.)

Answers

Based on the scientific background provided, the jewelry found could potentially be made of either aluminum or iron. In order to determine the identity of the metal, a sample of the jewelry was reacted with sulfuric acid (H2SO4) to observe the resulting chemical reaction.

There are four different types of chemical reactions: synthesis reactions, decomposition reactions, single displacement reactions, and double displacement reactions. The reaction between the metal jewelry and sulfuric acid is a single displacement reaction, also known as a redox reaction. This is because the reaction involves the transfer of electrons from the metal to the hydrogen in the sulfuric acid.

The chemical equation for the reaction between the metal and sulfuric acid is:

Metal + H2SO4 → Metal sulfate + H2

If the metal is iron, the product produced is iron (III) sulfate (Fe2(SO4)3) and hydrogen gas (H2). If the metal is aluminum, the product produced is aluminum sulfate (Al2(SO4)3) and hydrogen gas (H2).

To calculate the amount of product produced, we need to use stoichiometry. Assuming the metal is iron, the molar mass of iron is 55.85 g/mol and the molar mass of iron (III) sulfate is 399.88 g/mol. Therefore, the theoretical yield of iron (III) sulfate from 10.0 g of iron is:

10.0 g Fe × (1 mol Fe / 55.85 g Fe) × (1 mol Fe2(SO4)3 / 2 mol Fe) × (399.88 g Fe2(SO4)3 / 1 mol Fe2(SO4)3) = 357.67 g Fe2(SO4)3

Similarly, if the metal is aluminum, the molar mass of aluminum is 26.98 g/mol and the molar mass of aluminum sulfate is 342.15 g/mol. Therefore, the theoretical yield of aluminum sulfate from 10.0 g of aluminum is:

10.0 g Al × (1 mol Al / 26.98 g Al) × (1 mol Al2(SO4)3 / 2 mol Al) × (342.15 g Al2(SO4)3 / 1 mol Al2(SO4)3) = 634.97 g Al2(SO4)3

During the reaction, scientists can expect to see bubbling as hydrogen gas is produced. They can also observe the color and texture of the metal before and after the reaction to help determine its identity. Once the product of the reaction is identified as either iron (III) sulfate or aluminum sulfate, the identity of the metal can be determined.

In conclusion, the reaction between the metal jewelry and sulfuric acid is a single displacement reaction. Assuming the metal is iron, the product produced is iron (III) sulfate, and if the metal is aluminum, the product produced is aluminum sulfate. Using stoichiometry, the theoretical yield of each product can be calculated. Scientists can observe the reaction and the resulting product to determine the identity of the metal.

All the elements in this group form ions with a positive ___ charge. _____ is the most reactive element in the group.

Answers

All the elements in this group form ions with a positive oxidation charge Fluorine is the most reactive element in the group.

What is oxidation?

Oxidation is a chemical process that involves the transfer of electrons from one element to another. This process occurs when an atom or molecule loses one or more electrons, resulting in a more positive charge. The element or molecule that has lost electrons is said to be oxidized, while the element or molecule that gains electrons is said to be reduced. Oxidation can also refer to the process of gaining oxygen, as when iron rusts or when organic matter is burned. Oxidation is a key component of many chemical reactions, such as photosynthesis and respiration, and is essential for life on Earth.

To learn more about oxidation
https://brainly.com/question/13892498
#SPJ1

Which of the following is one of the main reasons that the use of synthetic opiates is growing?
O A.
OB.
O C.
O D.
Because more Americans are depressed, and opiates are the best way to combat depression.
Because synthetic opiates such as fentanyl are getting stronger, which means they are more addictive.
Because there is an abundance of poppies in Asia that need to be harvested into natural opiates.
Because more and more synthetic opiates are becoming legal in states across America.

Answers

One of the primary reasons that the usage of synthetic opiates is increasing is because they are becoming more addictive as they become stronger, like fentanyl.

Which of the following is an opioid analgesic made artificially?

Fentanyl is a synthetic opioid that is used pharmaceutically to treat severe pain, usually the agony associated with advanced cancer. It has between 50 and 100 times the potency of morphine.

What are the opioids' typical side effects?

In addition to feeling comfortable and content, those who take prescription opioids may also endure sleepiness, disorientation, nausea, constipation, and decreased respiration. Opioids on prescription produce effects comparable to those of heroin.

To know more about opiates visit:-

https://brainly.com/question/1564864

#SPJ1

How many moles of NaOH are there in 1.00 liters of a 2.7M NaOH solution?

Answers

Answer:

2.7mol

Explanation:

Concentration = amount of substance (n)/Volume

n = C × V

n = 2.7M × 1L

n = 2.7mol

1)Many common things you use regularly are colloids except.....
* milk
*hair
*spray
*paint
*alloy

2)Which mixture exhibits the Tyndall effect?
*fog
*salt water
*gasoline
*sterling silver

3)In an apparatus for testing the conductivity of solutions:
The light bulb
* glows in the solution is a poor conductor.
*dim if the solution is a poor conductor.
*doesn't glow at all.
*glows as it's nonelectrolyte.

Answers

The mixture that exhibits the Tyndall effect is fog. The Tyndall effect is the scattering of light by particles in a medium.

What is Tyndall Effect?

The Tyndall effect is the scattering of light by particles in a medium. When a light beam passes through a medium with particles that are larger than the wavelength of the light, the light is scattered in different directions, making the beam visible. This effect is observed in mixtures such as fog, smoke, and dust.

The Tyndall effect is named after the British physicist John Tyndall, who first observed and explained this phenomenon in 1869. Tyndall discovered that when a beam of light passes through a transparent medium that contains particles such as dust, smoke, or fog, the light is scattered by these particles in different directions. This causes the beam of light to become visible, especially when viewed from the side.

Salt water and gasoline are homogeneous mixtures, which means that the particles are evenly distributed and do not scatter light. Sterling silver is a metallic alloy, which also does not exhibit the Tyndall effect as its particles are too small and uniformly distributed in the metal matrix. Therefore, the correct answer is fog.

Learn more about Tyndall effect from given link

https://brainly.com/question/23487849

#SPJ1

Other Questions
which of the following is a true statement? a price-taker firm sell additional units of output without having to lower its price, while a price-searcher firm must lower its price in order to sell additional units A pendulum is a weight attached to a fixed rod, as shown in the figures. Suppose that during an experiment, a pendulum moves back and forth in a periodic manner. At the beginning of the experiment , when the time is t = 0 seconds , the pendulum is at a point halfway between its maximum and minimum distances from the wall, 2.5 m away from the wall (Figure 1) and moving toward the wall. The pendulum first reaches its minimum distance from the wall , 1 m from the wall , when t = 1 second (Figure 2). When t = 4 seconds, the pendulum is back to a point halfway between its maximum and minimum distances from the wall. The pendulum continues to move back and forth so that the distance between the pendulum and the wall over time can be modeled by a sinusoida ! function . In an elementary chemical reaction, single molecules of two reactants A and B form a molecule of the product C: A+B - C. The law of mass action states that the rate of reaction is proportional to the product of the concentrations of A and B: dc dt = k[A]B] (See Example 3.7.4.) Thus, if the initial concentrations are [A] = a moles/Land (B] = b moles/L and we write r = (C), then we have do dt ka - x)( - ) a. Assuming that a b, find as a function of t. Use the fact that the initial concentration of C is o. b. Find (t) assuming that a = b. How does this expression for a(t) simplify if it is known that 1 [C] - a after 20 seconds? What is psychological price adjustment and how do marketers usethis strategy to influence consumers? Illustrate your answer usingappropriate examples. PLEASE HELP WITH THIS PROBLEM ASAP Do the Ratios 6/5 and 4/3 fit a Proportion Question 21 ptsAt a community event, a vendor lets attendees spin their prize wheel. The wheel consists of 5colored sections that the vendor claims to be equally likely. One of the sections is labeled "winner!"A diligent observer records the outcomes of 75 spins. Let X = the number of spins that resulted in awin.Use this normal distribution to calculate the probability that AT MOST 10 of the spins result in awin. Use up to 4 decimal places for the final answer. Use Table A for this one. Stapplet will give adifferent value.Next Read the following:"Thanksgiving chefs have a tough choice to make: stuffing or dressing? Both dishes are a delightful mix of bread,vegetables, aromatic spices, and fat. But that's where the similarities end."Stuffing is cooked inside the turkey. It spends hours soaking up lots and lots of turkey juices. No matter what, stuffing willalways taste like turkey. There's no point in adding expensive or delicately flavored ingredients because the baked-in flavor ofturkey will not be denied. Dressing is cooked separately, which allows the taste of the individual ingredients to shine through.Experimentation is rewarded with dressing, so go ahead and throw in something exotic, like sausage, oysters, sourdough, orcombread.*There's only so much space inside a turkey, so there is never enough stuffing. It rarely lasts until the end of the main meal,making it a fleeting treat. Dressing is limited only by the size of the oven. It's easy to make large quantities that can feed acrowd and still provide days (and days) of leftovers."Perthaps the most important difference between stuffing and dressing is the risk of food poroning. Stuffing must get hoteough to kill all the bacteria it picks up from the turkey. It can still be dangerously undercooked when the meat is done, butmany home chefs don't think to measure stuffing temperature. Dressing is far less likely to be contaminated, and it also cooksfaster because it bakes alone in a pan.What is the organizational structure of this comparison, and how can vou Question 1 of 20Which program was an effort to provide jobs instead of welfare?OA. The Glass-Steagall ActB. The National Labor Relations ActOC. The Social Security ActOD. The Works Progress AdministrationSUBMIT Select the graph that would represent the best presentation of the solution set for |x| < 5. Free Cash Flow valuationa) You have been given the following numbers from the management of a company as an estimation of future performance (numbers in MSEK):Year 0 1 2 3EBIT 180 200 230Depreciation 20 24 27Working Capital 100 120 125 130Investments 50 55 60The free cash flow (FCF) in year 4 is estimated to be 150 MSEK andis expected to grow by 4 % until the end of time. The WACC of the company is 13 % and the company tax paid is 25 %.What is the enterprise value of the firm ?b)Suppose the company has 100 million shares outstanding and 400 MSEK in debt, what is its share price? calculate the energy needed to raise the temperature of 0.40kg of water in an aluminium container of mass 0.20kg from 15 degrees to 40 degreesaluminium shc - 900 j/kg ernesto sends an email to his co-worker greta. in it, he intends to indicate his approval about the progression of greta's project. however, greta views the email as just an objective summary of the project so far. this phenomenon is called the i. New information comes out showing that bonds for Annes Cupcake Shop have a very high rating (AAA), showing that Anne is very credit worthy. This credit rating means that Annes Cupcake Shop is ___likely or unlikely___ii. Conduct a graph that shows what will happen to the demand for Annes bonds based on your assessment of this change in her default risk above. Question 11 (1 point)Mary Ellen is making a table cloth for a client's dining room. She selected some pale-yellow linen from a craft store and has it laid out on her work table to cut into thecorrect shape. What tool is Mary Ellen MOST LIKELY going to use to cut the linen?ScissorsShearsA measuring tapeA Color Scheme Guide Find an equation for the graph. (Helpppp)Write slope-intercept form of the line which is perpendicular bisector toa segment with endpoints A(5,9), B(7,13). The ancient Babylonians developed a method for calculating nonperfect squares by 1700 BCE. Complete the statements to demonstrate how to use this method to find the approximate value of . In order to determine , let G1 = 2, a number whose square is close to 5. 5 G1 = , which is not equal to G1, so further action is necessary. Average 2 and G1 to find G2 = 2.25. 5 G2 (rounded to the nearest thousandth), which is not equal to G2, so further action is necessary. Average 2.25 and G2 to find G3 = 2.236. 5 G3 (rounded to the nearest thousandth), which is equal to G3. That means is approximately 2.236. Consider the graph of 5x + 8x + 4y - 4y = 70.If the graph of 5x + 8x + 4y - 4y = 70 is stretched horizontally by a factor of 3, the equation of the stretched graph will beIf the graph of 5x + 8x + 4y - 4y = 70 is stretched vertically by a factor of 7, theequation of the stretched graph will be the home health nurse is planning an educational session with a newly diagnosed client who has diabetes mellitus. what is the first action the nurse needs to take to develop a comprehensive education plan for the client?