Match
1)solutions
2)colloids
3)suspensions
smaller than 1 nm
larger than 1000 nm
1 nm to 1000 nm

Answers

Answer 1

Answer:

Solutions - smaller than 1 nm

Colloids - 1 nm to 1000 nm

Suspensions - larger than 1000 nm


Related Questions

Compare the ways in which igneous and metamorphic rocks form. Include examples in your answer. (6 marks QWC)

Answers

Answer:

Igneous and metamorphic rocks are two of the three major types of rocks found on Earth, with the third being sedimentary rocks. Igneous rocks are formed from the solidification of molten magma or lava, while metamorphic rocks are formed from the transformation of existing rocks due to high temperature and pressure.

The formation of igneous rocks begins when magma or lava cools and solidifies. Magma is molten rock that is located beneath the Earth's surface, while lava is magma that has erupted onto the surface. When magma or lava cools and solidifies, it forms igneous rocks. There are two types of igneous rocks: intrusive and extrusive. Intrusive igneous rocks form when magma cools and solidifies slowly beneath the Earth's surface, while extrusive igneous rocks form when lava cools and solidifies quickly on the Earth's surface. Examples of igneous rocks include granite, basalt, and pumice.

In contrast, the formation of metamorphic rocks occurs when existing rocks are transformed due to high temperature and pressure. Metamorphism can occur when rocks are buried deep within the Earth's crust, or when they are subjected to high pressure and temperature due to tectonic activity. The transformation of existing rocks can result in the formation of new minerals, textures, and structures within the rocks. Examples of metamorphic rocks include marble, slate, and gneiss.

In conclusion, the formation of igneous and metamorphic rocks differ in terms of their origin and formation process. Igneous rocks are formed from the solidification of molten magma or lava, while metamorphic rocks are formed from the transformation of existing rocks due to high temperature and pressure. While both types of rocks can be found in various locations around the world, they differ in their properties, appearance, and composition.

Explanation:

what percentage of a tritium sample will remain after 11 years? the half-life of tritium is 12.3 years. please answer in percent and round your answer to one place past the decimal.

Answers

After 11 years, a tritium sample will contain about 41.6% of the original amount.

How many years are there in a tritium half-life?

A hydrogen isotope with a half-life of 12.3 years, tritium (also known as T or 3H) decays to 3He through beta decay.

Applying the formula for the half-life:N(t) = N₀(1/2)^(t/T)

where N(t) is the quantity still present at time t, N0 is the starting quantity, t is the time since the beginning of time, and T is the half-life.

For tritium, we have T = 12.3 years, and t = 11 years.

Substituting these values, we get:

N(11) = N₀(1/2)^(11/12.3)

We can multiply by 100 and divide N(11) by N0 to determine how much is left:

% remaining = (N(11) / N₀) * 100

% remaining = (1/2)^(11/12.3) * 100

% remaining = 41.6%

To know more about tritium visit:-

https://brainly.com/question/13559964

#SPJ1

How did you get the solution to change from blue to yellow?

Answers

Adding an acid will change the blue colour to yellow. On addition of an acid, hydrogen ion concentration increases, equilibrium shifts towards removal of excess hydrogen ions and the solution will turn yellow.

Why do clouds form behind a cold front and ahead of a warm front?

Answers

Clouds form behind a cold front and ahead of a warm front because of the difference in temperature and moisture between the two air masses.


When a cold front, which is an area of colder air, meets a warm front, which is an area of warmer air, the colder air forces the warmer air to rise. As the warmer air rises, it cools and the moisture in the air condenses to form clouds. This process is called adiabatic cooling.

Similarly, when a warm front meets a cold front, the warmer air rises over the colder air and cools, forming clouds. However, because the warm air is less dense than the cold air, it rises more slowly and the clouds that form are typically less dense and less likely to produce precipitation.

In both cases, the difference in temperature and moisture between the two air masses leads to the formation of clouds. This is why we often see clouds forming behind a cold front and ahead of a warm front.


For more question on Clouds click on

https://brainly.com/question/2941398

#SPJ11

Steps of Scientific learning​

Answers

The steps in scientific learning are observations, hypotheses, predictions, testing, analysis, and conclusion.

Steps in scientific learning

The steps of scientific learning are as follows:

Observations - Gathering information about a particular phenomenon.Hypothesis - Developing a tentative explanation based on the observations.Predictions - Deriving predictions from the hypothesis that can be tested through experimentation.Testing - Conducting experiments to test the predictions.Analysis - Analyzing the results of the experiments to determine if they support or refute the hypothesis.Conclusion - Drawing a conclusion based on the results and determining whether further research is necessary.

More on scientific learning can be found here: https://brainly.com/question/7508826

#SPJ1

Can somebody help me please

Answers

TRNA binds to mRNA codon 5'-AUG-3' through complementary base pairing, carrying methionine.

What is tRNA and its function?

Transfer RNA, also known by the acronym tRNA and formerly known as soluble RNA (sRNA), is an adaptor molecule made of RNA that, in eukaryotes, usually has a length of 76 to 90 nucleotides[2]. It acts as the physical connection between the mRNA and the amino acid sequence of proteins. tRNAs from bacteria usually have shorter genomes (mean = 77.6 bp) than those from archaea and eukaryotes (mean = 83.1 bp and 84.7 bp, respectively).

The mature tRNA exhibits the reverse trend, with eukaryotes having the smallest mature tRNAs (median = 74.5 nt), while tRNAs from bacteria are typically longer (median = 77.6 nt) than tRNAs from archaea (median = 76.8 nt).

Learn more about tRNA

https://brainly.com/question/29775087

#SPJ1

Zinc metal reacts with copper(II) sulfate solution according to the following equation:


Zn(s) + CuSO4(aq) → ZnSO4(aq) + Cu(s)


Determine the maximum mass of copper that can be deposited when 1.20 g of zinc is

added to 50.0 cm
3 of 2.00 x 10-1 mol dm-3

copper(II) sulfate solution. ​

Answers

The mass of copper produced is  0.635 g from the question that has been asked here.

What is the stoichiometry of a reaction?

Stoichiometry is the study of the quantitative relationships between reactants and products in a chemical reaction. It involves the use of balanced chemical equations to determine the ratios of reactants and products in a reaction.

We can see that the reaction equation is;

Zn(s) + CuSO4(aq) → ZnSO4(aq) + Cu(s)

Number of moles of Zn = 1.2g/65 g/mol

= 0.018 moles

Number of moles CuSO4 = 50/1000 * 0.2

= 0.01 moles

Then;

Since the reaction is 1:1

0.01 moles of CuSO4 will produce

0.01 mol * 63.5 g.mol

= 0.635 g

Learn more about stoichiometry:https://brainly.com/question/30215297

#SPJ1

We can measure the rate of reaction between calcium carbonate and acid by displacing the water in an upturned measuring cylinder with the carbon dioxide produced. Explain
whether the time taken to displace all of the water in a measuring cylinder will be greater for lumps of calcium carbonate or powder

Answers

The rate of reaction, time taken to displace all of the water in a measuring cylinder will be greater for lumps of calcium carbonate or powder so that Carbon dioxide can escape.

Gases that do not dissolve in water can be trapped in water using a technique known as displacement of water.

This method necessitates the use of a delivery tube, a measurement cylinder, and a water basin.

We begin by filling a measuring cylinder with water and inverting it in a water basin. The gas is then bubbled into the inverted measurement cylinder through a delivery line. The water level falls as gas bubbles up and fills the inverted measuring cylinder.

The faster the response, the higher the quantity of mass lost. The quantity of mass loss, as demonstrated by the issue, is decreasing over time. It may be deduced from this that the pace at which the product particles are created is slowing and finally stopping.

Learn more about Rate of reaction:

https://brainly.com/question/29414221

#SPJ4

Need some answers to these ASAP PLEASE

Answers

Answer: working on it

Explanation:

Answer:

a. 4 moles aluminum chloride = 8 moles chlorine (since each mole of aluminum chloride contains 2 moles of chlorine)

b. 1 mole aluminum chloride = 1 mole aluminum (since each mole of aluminum chloride contains 1 mole of aluminum)

c. It is not possible to determine the number of moles of chlorine from the given information.

How many grams of Na₂SO4 were used to prepare 435.2 mL of 0.0156 M Na₂SO4 solution? m(Na₂SO4) =​

Answers

Answer:

0.965 grams.

Explanation:

To calculate the mass of Na₂SO4, we can use the formula:

mass = moles x molar mass

First, let's calculate the number of moles of Na₂SO4 in 435.2 mL of 0.0156 M solution:

moles = volume (in L) x molarity

moles = 0.4352 L x 0.0156 mol/L

moles = 0.0067872 mol

The molar mass of Na₂SO4 is 142.04 g/mol, so we can calculate the mass of Na₂SO4 as:

mass = moles x molar mass

mass = 0.0067872 mol x 142.04 g/mol

mass = 0.965 g

Therefore, the mass of Na₂SO4 used to prepare 435.2 mL of 0.0156 M Na₂SO4 solution is 0.965 grams.

assuming that the balls are on a surface with no friction which table could summarize the motion of the red ball over the same time period

Answers

The motion of the red ball over the same time period | 20 | 100 | Red ball continues to travel 25 meters in 5 seconds.

What is period?

Period, also known as the menstrual cycle, is the regular natural change that occurs in the reproductive system of women. It is a cycle of physical changes that happens to a female's body each month, usually lasting about 28 days. During this time, the uterus sheds its lining and a woman may experience bleeding from her. The period usually starts at puberty and ends when a woman reaches menopause.

| Time (s) | Position (m) | Explanation |

| - | - | - |

| 0 | 0 | Red ball starts at position 0 |

| 5 | 25 | Red ball travels 25 meters in 5 seconds |

| 10 | 50 | Red ball continues to travel 25 meters in 5 seconds |

| 15 | 75 | Red ball continues to travel 25 meters in 5 seconds |

To learn more about period

https://brainly.com/question/29752383

#SPJ9

All the particles split up into smaller particles

Answers

Particle splitting can occur through various mechanisms, such as nuclear fission, radioactive decay, and particle collisions.

Nuclear fission involves the splitting of an atomic nucleus into two or more smaller nuclei, releasing a significant amount of energy in the process. Radioactive decay is the natural process by which unstable atomic nuclei emit particles or radiation to become more stable. Particle collisions can also lead to the splitting of particles, as high-energy particles can break apart atomic nuclei or other particles.

These smaller particles may be subatomic particles such as protons, neutrons, and electrons, or even smaller particles like quarks and leptons.

For such more questions on Nuclear fission

https://brainly.com/question/3992688

#SPJ4

A 0. 807 g mixture containing only sodium chloride and potassium chloride was dissolved in water. It required 32. 8 mL of 0. 384 M AgNO3 to completely precipitate all of the chloride present. What is percent composition by mass of sodium chloride and potassium chloride in the mixture?

Answers

The percent composition by mass of sodium chloride and potassium chloride in the mixture is 90.4% sodium chloride and 9.6% potassium chloride.

The percent composition by mass of sodium chloride and potassium chloride in the mixture can be calculated using the following equation:

%Mass Sodium Chloride = (Mass of Sodium Chloride / (Mass of Sodium Chloride + Mass of Potassium Chloride)) x 100

%Mass Potassium Chloride = (Mass of Potassium Chloride / (Mass of Sodium Chloride + Mass of Potassium Chloride)) x 100

Mass of Sodium Chloride = (32.8mL)(0.384M)(58.44g/mol) / 1000mL = 0.73 g

Mass of Potassium Chloride = 0.807 g - 0.73 g = 0.077 g

%Mass Sodium Chloride = (0.73 g / (0.73 g + 0.077 g)) x 100 = 90.4%

%Mass Potassium Chloride = (0.077 g / (0.73 g + 0.077 g)) x 100 = 9.6%
Therefore, the percent composition by mass of sodium chloride and potassium chloride in the mixture is 90.4% sodium chloride and 9.6% potassium chloride.

For more question on percent composition click on

https://brainly.com/question/26632540

#SPJ11

0. 487 grams of quinine (molar mass = 324 g/mol) is combusted and found to produce
1. 321 g CO2, 0. 325 g H2O and 0. 0421 g nitrogen. Determine the empirical and molecular
formulas

Answers

The chemical formula is C₂₀H₂₄N₂.

To determine the empirical formula, we first need to calculate the number of moles of each element in the given compounds:

moles of carbon: 1.321 g CO₂ x (1 mol CO2/44.01 g CO₂) x (1 mol C/1 mol CO₂) = 0.030 mol C

moes of hydrogen: 0.325 g H₂O x (1 mol H₂O/18.015 g H₂O) x (2 mol H/1 mol H₂O) = 0.036 mol H

moles of nitrogen: 0.0421 g N x (1 mol N/14.01 g N) = 0.003 mol N

Next, we can calculate the mole ratio of each element by dividing the number of moles of each element by the smallest number of moles:

C: 0.030 mol C / 0.003 mol N = 10

H: 0.036 mol H / 0.003 mol N = 12

N: 0.003 mol N / 0.003 mol N = 1

Therefore, the empirical formula is C₁₀H₁₂N.

To find the molecular formula, we need to know the molar mass of the compound. We can calculate the molar mass of the empirical formula C₁₀H₁₂N as:

molar mass = (10 x 12.01 g/mol) + (12 x 1.01 g/mol) + (1 x 14.01 g/mol) = 162.22 g/mol

We can then calculate the molecular formula by dividing the molar mass of the compound by the molar mass of the empirical formula:

molecular formula = molar mass of compound / molar mass of empirical formula

= (324 g/mol) / (162.22 g/mol) = 1.998

Since the molecular formula should be a whole number, we can round it to the nearest whole number to get 2.

Therefore, the molecular formula is C20H24N2.

To learn more about molecular formula refer to:

brainly.com/question/28647690

#SPJ4

How does blood flow through your body. What is the path that it takes

Answers

A closed network of blood vessels, comprising arteries, veins, and capillaries, transports blood throughout the body.

These are some examples of the route blood takes:

The largest artery in the body, the aorta, is used to push blood out of the heart.

The aorta divides into smaller arteries that supply blood to the body's many organs and tissues.

The arteries gradually shrink to the size of arterioles, which are tiny channels that can assist control blood pressure and flow.

The tiniest blood veins in the body, known as capillaries, are then reached via arterioles. The blood and cells of the organism exchange nutrients and gases through capillaries.

Then, blood exits the capillaries and enters the tiny veins called venules.

Learn more about the route blood here:

https://brainly.com/question/29649055

#SPJ4

Voge and Morgan (I. E. C. Proc. Design Dev. 11 454 1972) studied the dehydrogenation of n-butenes to butadiene over an iron oxide catalyst in the presence of steam. At 640°C the kinetics can be represented by a two consecutive first-order reaction network. Butene 1k→Butadiene 2k→ CO2 + cracked products with k2 = 0. 8 k1 a. In a preliminary series of experiments the following level of conversion was measured in an isothermal bed at 640°C. Equivalent spherical diameter Conversion 3. 4 mm 36. 9 5. 1 mm 31. 7 9. 5 mm 25. 6 Use these data to compute the Thiele modulus for the three pellets. Note that this is the conversion at the end of a reactor, not the local one. B. Determine the yield of butadiene using catalyst particles with a diameter of 1. 0 and 7. 0 mm in a reactor of the same length. Detrmine first the impact o n the conversion and then on the yield. C. . What will be the effect of increasing both rate constants by a factor of 4? The feed is pure butene and steam

Answers

A. Thiele modulus for the three pellets is 1.78, 2.74, and 6.04 for conversion 3. 4 mm 36.9, 5.1 mm 31.7, and 9.5 mm 25.6 respectively

B. The yield of butadiene using catalyst particles with a diameter of 1. 0 and 7. 0 mm in a reactor of the same length is 0.118 and 0.073 respectively.

C. The Thiele modulus (φ) will rise for all the pellets if both rate constants are increased by a factor of 4, as the reactions speed up.

a) To calculate the Thiele modulus (φ) for each pellet, we can use the following equation:

φ² / (6 x Th) = -(1/2)ln(1-X)

where,

φ is the particle diameter

Th is the Thiele modulus

X is the conversion.

The conversion for the first pellet, which has a 3.4 mm diameter, is 36.9%. Thus,

Th = φ² / [tex](6\times(-1/2)ln(1-X))[/tex]

Th = [tex]3.4^2 / (6\times(-1/2)ln(1-0.369))[/tex]

Th = 1.78

The conversion for the first pellet, which has a 5.1 mm diameter, is 31.7%. Thus,

Th = φ² / [tex](6\times(-1/2)ln(1-X))[/tex]

Th = [tex]5.1^2 / (6\times(-1/2)ln(1-0.317))[/tex]

Th = 2.74

The conversion for the first pellet, which has a 9.5 mm diameter, is 25.6%. Thus,

Th =φ²/ [tex](6\times(-1/2)ln(1-X))[/tex]

Th = [tex]9.5^2 / (6\times(-1/2)ln(1-0.256))[/tex]

Th = 6.04

B) In order to compute the butadiene yield utilizing catalyst particles with diameters of 1.0 and 7.0 mm, we must first know the conversion at the reactor's end.

We may infer from the information provided that the conversion is a diminishing function of pellet size.

Hence, we may interpolate the conversion values for the two particle sizes:

Conversion at 1.0 mm

= 36.9 x (1 - ((1.0 - 3.4) / (9.5 - 3.4))

= 26.6%

Conversion at 7.0 mm

= 25.6 x (1 - ((7.0 - 3.4) / (9.5 - 3.4))

= 16.5%

Thus, we must account for both the conversion and the selectivity when calculating the butadiene yield.

The second reaction's selectivity ([tex]S_2[/tex]) may be represented as

[tex]k_2 / (k_1 + k_2)[/tex] = 0.8 / 1.8

= 0.444 since the reactions occur one after the other.

For the 1.0 mm particle, the yield of butadiene can be calculated as:

Yield

= Conversion x Selectivity

= 0.266 x 0.444

≈ 0.118

For the 7.0 mm particle, the yield of butadiene can be calculated as:

Yield

= Conversion x Selectivity

= 0.165 x 0.444

≈ 0.073

c) The Thiele modulus (φ) will rise for all the pellets if both rate constants are increased by a factor of 4, as the reactions speed up. For the same reactor duration and circumstances, this will lead to a drop in conversion and yield.

Using the Thiele modulus equation from section (a), we can recalculate the conversion and yield using the new rate constants to determine the magnitude of this effect.

for such more question on Yeild

https://brainly.com/question/14714924

#SPJ4

based on the six given solvents, which of the following answers lists all of the solvents that are not suitable for liquid-liquid extraction of an aqueous layer? 1. n-pentane 2. dimethyl sulfoxide 3. hexanes 4. dichloromethane 5. toluene 6. isopropanol

Answers

The solvents that are not suitable for liquid-liquid extraction of an aqueous layer are 1. n-pentane, 3. hexanes, and 6. isopropanol.

Liquid-liquid extraction (LLE) is a separation process that is commonly used in the laboratory to separate and purify a solvent-containing dissolved solute mixture. Liquid-liquid extraction may be utilized to segregate an aqueous solution containing one or more organic solutes from a complex mixture of organic solutes or to remove a neutral substance from an acidic or basic aqueous solution. The process entails dissolving a compound or compounds from one solvent into another and then separating the newly formed two-phase system.

The solvents that are not suitable for liquid-liquid extraction of an aqueous layer are as follows:

1. n-pentane 3. hexanes 6. isopropanol

The following solvents are suitable for liquid-liquid extraction of an aqueous layer:

2. dimethyl sulfoxide 4. dichloromethane 5. toluene

Know more about aqueous layer

https://brainly.com/question/14567984

#SPJ11

In different types of solutions, solvents must be liquids.
-True.
-False

Answers

SOLUTIONS

[tex] \mathbb{ANSWER:}[/tex]

False

Solvents can also be solid and gas not only liquid.

Answer:

True.

Explanation:

In order for a substance to dissolve in a solvent, the solvent must be a liquid. In different types of solutions such as solid-liquid, liquid-liquid, or gas-liquid solutions, the solvent always exists in the liquid phase.

Write a dissociation equation for how calcium chloride dissociates in water

Answers

CaCl 2(aq)→Ca 2+(aq)+2Cl −(aq) is a dissοciatiοn equatiοn fοr hοw calcium chlοride dissοciates in water.

What is reactiοn?

A chemical reactiοn is the transfοrmatiοn οf οne οr mοre chemicals, knοwn as reactants, intο οne οr mοre new cοmpοunds, knοwn as prοducts. The change in cοncentratiοn οf any οf the reactants οr prοducts per unit οf time can be used tο determine the rate οr speed οf a reactiοn. It is determined by the equatiοn rate=time + cοncentratiοn.

What is dissοciate iοn?

When dissοlved in water, the lattice οf an iοnic crystal disintegrates. When an iοnic sοlid substance dissοlves, dissοciatiοn—the separatiοn οf iοns—οccurs. Iοnic substances that are placed in water will break apart intο a pοsitive iοn and a negative iοn, a prοcess knοwn as electrοlytic dissοciatiοn οr iοnic dissοciatiοn. Iοnizatiοn is a term used tο describe this kind οf dissοciatiοn respοnse. Iοnizatiοn is the name οf the reactiοn, while electrοlytic sοlutiοns are the results.

Therefοre,

CaCl 2(aq)→Ca 2+(aq)+2Cl −(aq) is a dissοciatiοn equatiοn fοr hοw calcium chlοride dissοciates in water.

Learn more about reaction from the given link.

https://brainly.com/question/11231920

#SPJ1

as dr. jillian swift's research has shown, chemical isotope analysis is particularly useful for considering ancient diets. why is this?

Answers

chemical isotope analysis is particularly useful for considering ancient diets because it provides information that cannot be obtained from other sources.

Chemical isotope analysis is particularly useful for considering ancient diets because it can reveal the types of foods that were consumed by ancient people. This type of analysis is based on the fact that different isotopes of elements such as carbon, nitrogen, and oxygen are found in different types of foods.

For example, the isotopes of carbon found in wheat and barley are different from those found in meat and dairy products. By analyzing the isotopes of carbon, nitrogen, and oxygen in the bones and teeth of ancient people, researchers can determine what types of foods were consumed by these people.

This information can help researchers to understand how ancient people lived, what types of foods they ate, and how their diets may have affected their health and well-being. It can also provide insight into how food production and consumption patterns have changed over time.

Learn more about isotopes here:

https://brainly.com/question/13537430

#SPJ11

What does a horizontal line on a position-time graph indicate about the object?(1 point)

Answers

A horizontal line on a position-time graph indicates that the object is not moving; its position is not changing.

What is a position-time graph?

A position-time graph is a type of graph used to show the change in the position of an object over time. It is typically a line graph with the x-axis representing time and the y-axis representing position.

The slope of the line corresponds to the speed of the object, while the area under the line represents the total distance traveled by the object.

Furthermore, the velocity of an object is represented by the slope of a location graph. Hence, the slope's value at a given instant corresponds to the object's velocity at that precise moment.

Learn more about position-time graph here:

https://brainly.com/question/25225415

#SPJ1

A sample of oxygen, O 2 , occupies 32. 2 mL at 30 °C and 452 torr. What volume will it occupy at –70 °C and the same pressure?

Answers

Answer:

21.58 mL

Explanation:

this is Charles' law

V1/T1 = V2/T2

Temperature must be in Kelvin

V2= V1 X T2 / T1

32.2  x203.15 / 303.15

dont need pressure since its the same.

3Cl2 + 2N2 → 2N2Cl3

Molar masses:


chlorine gas = 70. 9 g/mol

nitrogen gas = 28. 02 g/mol

dinitrogen trichloride = 134. 27 g/mol


a. 1. 98 mol of chlorine reacts with 1. 98 moles of nitrogen. What is the limiting reactant? (chlorine)


b. What mass of dinitrogen trichloride is produced from the reaction? (177. 2364)


c. How many moles of the excess reactant is left over? (0. 66)


d. If the percent yield of dinitrogen trichloride is 95. 5%, what is the actual yield of the product? (169. 2607)

Answers

0.0279 mole of the excess reactant is left over if 1.98 mole of chlorine react with 1.98 moles of nitrogen.

The mole is defined as the amount of substance of a system which contains as many elementary entities as there are atoms in 0.012 kilogram of carbon 12. It is expressed as "mol". It contains 6.022 X1023 entities like particles, atoms, ions, molecules, etc. of the given substance. It measures the number of atoms, ions, or molecules. It is a standard scientific unit for measuring large quantities of very small entities such as atoms, molecules, or other specified particles. It explains the number of atoms or other particles in a mole is the same for all substances.

If 1. 98 mole of chlorine reacts with 1. 98 moles of nitrogen. then, the we can calculate the amount of reactant left over with the help of the concept for mole.

Moles = 1.98 / 70.9

          = 0.0279

To learn more about Mole of a substance

https://brainly.com/question/837939

#SPJ4

The correct question is,

3Cl2 + 2N2 → 2N2Cl3

Molar masses:

chlorine gas = 70. 9 g/mole

nitrogen gas = 28. 02 g/mole

dinitrogen trichloride = 134. 27 g/mole

1. 98 mole of chlorine reacts with 1. 98 moles of nitrogen. How many moles of the excess reactant is left over?

When 16. 5 g of calcium carbonate react with an excess of hydrochloric acid, calcium chloride, carbon dioxide, and water vapor are produced. Write the equation. What is the theoretical yield of carbon dioxide?​

Answers

Answer:

One mole of calcium carbonate reacts with 2 moles of HCl forms one mole of calcium chloride, water and carbon dioxide each. The theoretical yield of calcium chloride from 16.5 g of calcium carbonate is 18.3 g

Explanation:

A chemist titrates 190 ml of. 2412 nitrous acid solution with. 377 M KOH solution. Calculate the ph at equivalence. The pKa of nitrous acid is 3. 35

Answers

The equivalency solution has a pH of 2.624.

What is the procedure for making nitrous acid?

Nitrous acid is frequently created by adding a mineral acid to aqueous sodium nitrite solutions. Typically, acidification is carried out at ice-cold temperatures, and HNO2 is consumed on-site. Nitrous acid in its free form is unstable and breaks down quickly.

In a neutralization process, weak nitrous acid (HNO2) reacts with strong basic KOH.

HNO2 + KOH → KNO2 + H2O

Then, we determine how many moles of KOH were used:

volume KOH x concentration equals moles KOH. KOH

moles KOH = 0.190 L x 0.377 mol/L

moles KOH = 0.07153 mol

Next, we calculate the initial concentration of HNO2:

concentration HNO2 = moles HNO2 / volume HNO2

concentration HNO2 = 0.07153 mol / 0.190 L

concentration HNO2 = 0.3765 M

[HNO2] = 0.5 x 0.3765 M

[HNO2] = 0.1883 M

The following equation can be used to model how nitrous acid dissociates in water:

HNO2 + H2O ⇌ H3O+ + NO2-

The following equation relates the pKa to the acid dissociation constant, Ka, for this reaction:

pKa = -log Ka

So we can find the Ka value from the given pKa:

pKa = -log Ka

3.35 = -log Ka

Ka = 10⁻³

Ka = 4.47 x 10⁻⁴

The relationship shown below is true for the concentrations of the species involved at equilibrium:

Ka = [H3O+][NO2-] / [HNO2]

Ka = [H3O+][NO2-] / [HNO2]

Ka = [H3O+] [HNO2]

Solving for [H3O+], we get:

[H3O+] = Ka / [HNO2]

[H3O+] = (4.47 x 10⁻⁴) / (0.1883 M)

[H3O+] = 0.002374 M

Finally, we can calculate the pH of the solution:

pH = -log[H3O+]

pH = -log(0.002374)

pH = 2.624

To know more about nitrous acid solution visit:-

https://brainly.com/question/17011556

#SPJ1

How many grams of AgNO3 are needed to prepare 237.3 mL of 0.0312 M AgNO3 solution? m(AgNO3) = ___g​

Answers

Answer:

we need 1.605 grams of AgNO3 to prepare 237.3 mL of 0.0312 M solution.

Explanation:

First, let's write down the formula for calculating the mass of a solute:

mass = molarity x volume x molar mass

We are given the volume and molarity of the solution, so we just need to find the molar mass of AgNO3.

AgNO3 has a molar mass of 169.87 g/mol.

Now we can substitute into the formula:

mass = 0.0312 mol/L x 0.2373 L x 169.87 g/mol

mass = 1.605 g

Therefore, we need 1.605 grams of AgNO3 to prepare 237.3 mL of 0.0312 M solution.

Cationic molecular ions are more abundant than Anionic molecular ions. Justify?

Answers

The Cationic molecular ions are more abundant than Anionic molecular ions because capacity of cationic to stabilise unpaired electrons make synthesis of cationic molecular ions less energetically demanding.

The capacity of cationic molecular ions to stabilise unpaired electrons makes the synthesis of cationic molecular ions less energetically demanding. The most advantageous reason for the abundance of cationic molecular ions is that the cosmic ray has so much energy that it is largely unaffected by the comparatively little energy necessary to ionise molecules. There is ample of radiation from a broadband source like the Sun to drive the molecules to high energy states from which they can be triggered and spontaneously emit. As a result, cationic molecular ions outnumber anionic ones.

Because of the low temperature and density of interstellar space, the most prevalent cationic molecular ion is H3+. Because its two electrons are sole valence electrons in the system, this H3+ is also thought to be a major source of cationic molecular ions.

Another reason for their prevalence is their capacity to stabilise unpaired electrons, which makes the production of cationic molecule ions less energetically demanding.

Learn more about Molecular ions:

https://brainly.com/question/24280770

#SPJ4

what is the mass percent of water in plaster of paris

Answers

Answer: 18.5%

Explanation:

What type of Electromagnetic energy does a T.V use?

ex: Infrared or Radio

Also how is it used in television?

Answers

Answer:

It's the type of radiation that lower frequency waves (such as visible light, microwaves, or radio waves) emit. Non-ionizing radiation is the kind that humans are typically exposed to when using electromagnetic wave-emitting technology, such as mobile phones, TVs, computers, powerlines, or microwaves.

Explanation:

hope this helps

A TV uses radio waves to receive broadcast signals from TV stations that transmit audio and video content. These signals are converted into electrical signals, which produce the audio and video output that we see and hear on the screen. The TV may also use infrared waves to communicate with remote controls.

Helppp Timed Quiz


Calculate the mass of 6. 9 moles of nitrous acid (HNO2). Explain the process or show your work by including all values used to determine the answer

Answers


Find moler mass-
H-1
N-14
02-31.98
Mm=46.98grams
6.9moles x 46.98/ 1mol
Answer=324.162 or 320 grams

Other Questions
30 POINTS ANYONE????????? what strategies can be used to make sure that shared governance in sports offers an advantage in light of its potential for conflict, role ambiguity, and decision-making delays? Choose the following business writing topic that would be better suited with an INDIRECTGroup of answer choicesA.To inform your employees of a lunch meetingB.A gentle reminder to a student that they need to pay their tuition by July 30 th .C.To inform a customer that they have not been approved for their loanD.To let your friend know what time to meet you at the movie theatre 25. A large ship is sailing between three small islands. To do so, the ship must sail between two pairs of islands, avoiding sailing between a third pair. The safest route is to avoid the closest pair of islands. Which is the safest route for the ship?26. Three cell phone towers form APQR.The measure of ZQ is 10 less than the measure of LP. The measure of Ris 5 greater than the measure of ZO. Which two towers are closest together? please help quick!!Considering the steps of meiosis, identify the correct number of chromosomes present at the beginning of meiosis I, interkinesis, and in the daughter cells at the end of meiosis II.92, 46, 2392, 46, 4646, 23, 1246, 92, 23 HELP FAST PLEASE, CONFUSED!!Which of the following tables represents a linear relationship that is also proportional? Choose one of the tables below. Not sure if its the first one? Option 1: 1,811 square feet, 2-3 bedroom, 2 bath house that arrives in 4 modules. It includes the upgraded PEX piping and fiber cement siding that Xavier saw on the tour. The price for Option 1 would be $180 per square foot.Option 2: 2,600 square feet, 3-4 bedroom, 3 bath house that arrives in 5 modules. It also includes the upgraded PEX piping and fiber cement siding. The price for Option 2 is $195 per square foot.Sabrina also explains that Xavier must have certain things ready ahead of time, such as electric, sewer, and water systems, as well as a foundation in place. She gives him the name of a transport company that would oversee bringing Xaviers modules to his house site. On your math sheet, complete the following problems that will help Xavier choose from the two options Sabrina has presented him:Math Problem 3: Calculate the total price for Option 1Use this formula to help you solve the problem:Total Square Feet Number of Square Foot=Total PriceMath Problem 4: Calculate the total price for Option 2Use this formula to help you solve the problem:Total Square Feet Number of Square Foot=Total PriceXavier contacts the transport company and is put in touch with one of the drivers, Kevin. Because the modules need to be connected quickly once they reach his build site, Xavier wants to know if he can have them all delivered on the same day. Kevin says that this would be possible using one truck per module. The fee for transporting each module is 20 cents per truck per mile, plus the cost of fuel. The factory is 350 miles from Xaviers build site, and Kevin estimates that each truck will need $500 worth of gas.On your math sheet, complete the following problem to help Xavier find out how much he will spend on transportation costs:Math Problem 5: Calculate Xaviers transportation cost to have the modules delivered on the same dayUse this formula to calculate Xaviers cost:[(.20 miles)+500] number of modulesPart 2: Job BoardXavier is excited but knows this is a huge project. Help Xavier stay organized by creating a job board for him. A job board is like a bulletin board that holds important information about a big project. This way, he can see the important aspects of his job, along with his costs. To do this, you will be taking the answers to the math questions above and creating items that Xavier can hang on his job board to remind him of the choices he should make in this project. You may select to create your job board in poster form or digitally in a word processing document. Either way, the job board should include the following pieces of content:A rough drawing of Xaviers lot that includes the lot measurements provided above.Make sure that you include the total area of the lot that you calculated in Math Problem 1 somewhere on this drawing.A sketch of the prefabricated house option that you suggest Xavier purchases (either Option 1 or Option 2).Make sure that you include his final price that you calculated in Math Problem 3 or 4.Also, be sure to label the upgraded technology that was included in the option you chose so that Xavier can point it out to his building inspector when the time comes.A graphic representation (photo, clip art, etc.) of a truck with the final transportation cost on it (this is the answer to Math Problem 5). Based on context, what is the meaning of harrow up?vastly puzzlehighly pleasegreatly disturbdeeply enlighten Marques wants to use a sheet of fiberboard 36 inches long to create a skateboard ramp with a 30 degree angle of elevation from the ground. How high will the ramp rise from the ground at its highest end? Round your answer to the nearest tenth of an inch if necessary. SOMEBODY HELP PLEASE IF YOU CAN A golf ball is hit into the air the path of the ball can be described by the equation h=55t-5t^2 where h is the height of the ball in meters and t is time in seconds the rate at which a consumer is willing to exchange one good for another while maintaining a constant level of satisfaction is called the group of answer choices relative expenditure ratio. value of marginal product. marginal rate of substitution. relative price ratio. Roaring Lion Company bought a 30-second advertisement that aired during a major sporting event at a cost of $1.2 million. It is legally obligated to pay for the ad but has not yet done so. How does the purchase and use of the ad time affect your company's Balance Sheet?a. It does not affect the Balance Sheet.b. It increases assets and decreases Shareholders' equity by $1.2 million each.c. It increases both assets and liabilities by $1.2 million.d. It increases liabilities and decreases Shareholders' equity by $1.2 million each. Techniques for building employee empowerment include:Group of answer choicesmoving responsibility from both managers and staff to production employees.building high-morale organizations.developing open, supportive supervisors.all of the responsesbuilding communication networks that include employees. Write a hypothesis about the pH level of common household solutions based on what you know about their physical and chemical properties. Use the format of "if . . . then . . . because . . . and be sure to answer the lesson question "How is pH used to determine if a solution is acidic or basic? Fwee points!Spread kindness which revision of the excerpt best adds a subjective tone? consider a man of mass 80kg standing 10m from a woman with a mass of 65 kg the attractive gravitational force between them would be ?please I need a fast verified answer Four yards of fabric will be cut into pieces so that each piece is thirteen inches long. How many pieces can be cut? Need some help with this for social studies