for a gas at a fixed pressure and temperature, what will happen to the volume of the gas when the number of moles of gas is doubled?

Answer: a. The electron configuration for sodium (atomic number 11) is:

1s² 2s² 2p⁶ 3s¹

b. The electron configuration for iodine (atomic number 53) is:

1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹0 4p⁶ 5s² 4d¹0 5p⁵

c. The electron configuration for iron (atomic number 26) is:

1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁶

It is a base because in solution it produces two hydroxide anions.

The Arrhenius theory, proposed in 1887 by the Swedish scientist Svante Arrhenius, states that acids dissociate in water to produce electrically charged atoms or molecules known as ions, one of which is a hydrogen ion (H+), and that bases ionize in water to produce hydroxide ions (OH). Acid, according to the Arrhenius theory, is a substance that releases H+ ions when dissolved in aqueous solution. The concentration of H+ ions in the solution rises. The base is a substance that, when dissolved in aqueous solution, ionizes the OH- ion.

Here,

The same logic holds true for the reaction of sulfuric acid and barium hydroxide. This reaction involves an Arrhenius acid, which generates two hydrogen cations in solution, and an Arrhenius base, which generates two hydroxide anions in solution.

It is a base as it generates two hydroxide anions in solution.

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Nitrogen has one sigma bond, 2 pi bonds, and one lone pair. So, its steric number is also sp and its hybridization is sp.

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The activation energy (Ea) for this reaction is 34.7kJ when the rate constant for the decomposition of NO₂ is 0.750M⁻¹s⁻¹ at 598K and the rate constant at 751K is 19.7 M⁻¹s⁻¹.

Given the initial temperature (t1) = 598K

The first rate constant (k1) = 0. 750 M⁻¹s⁻¹

The final temperature (t2) = 751k

The second rate constant (k2) = 19.7 M⁻¹s⁻¹

Rate constants are related to temperature and activation energy by the Arrhenius equation as: ki = Ae^-(Ea/RTi) where A is the pre-exponential factor, R is the universal gas constant = 8.314472 J/mol.K, T is the temperature, Ea is the activation energy and K is rate constant. The activation energy for a given reaction is not affected by temperature.

So, k2/k1 = Ae^-(Ea/RT2)/Ae^-(Ea/RT1)

log(k2/k1) = -Ea/R[1/T2 - 1/T1]

log(19.7 / 0.750) = -Ea/8.314[1/751 - 1/598]

log(26.26) = -Ea/8.314[-0.00034]

1.419 x 8.314 = 0.00034Ea

Ea = 11.8/0.00034 = 34705.93 = 34.7kJ

Hence the required activation energy (Ea) is 34.7kJ

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The compound that has the molecular formula C₆H₁₀O₅ is the polymer molecule cellulose.

The electrons of the atoms bound together in a compound are represented using a Lewis structure. Between the two bound atoms, electrons are depicted as either dots or lines. The position of the various elements and the type of the relationship is revealed by the structure.

Lewis dot structures also show lone pairs and electron bond pairs.

The given compound whose formula is C₆H₁₀O₅ has a six-membered ring and is cellulose. It is a polymer of glucose. The monomer glucose unit is linked to each other by glycosidic bonds with the elimination of a water molecule.

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2H5OH, also known as ethanol, is capable of forming hydrogen bonds. The ethanol molecule has a hydroxyl group (-OH) and a hydrogen atom on the carbon atom. The hydroxyl group can act as an electron donor and form hydrogen bonds with other electron-accepting groups such as nitrogen and oxygen atoms. The hydrogen atom can also act as an electron acceptor and form hydrogen bonds with electron-donating groups such as nitrogen and oxygen atoms.

In ethanol, the hydroxyl group is capable of forming one hydrogen bond with another molecule. In addition to that, the hydrogen atom on the carbon atom can form a hydrogen bond as well, So in total, C2H5OH can form 2 hydrogen bonds.

The amount of AlCl3 that may be created from 22.0g of Al is shown by this equation.

22.0g Al multiplied by (1 mol Al/26.98g) by (2 mol AlCl3/2mol Al) by (133.34 g/1mol AlCl3) results in 108.66g AlCl3.

This equation illustrates the amount of AlCl3 that may be created from 27.0g of Cl2.

33.87g AlCl3 is obtained by multiplying 27.0g Cl2 by (1 mol Cl2/70.91g) x (2mol AlCl3/3 mol Cl2) x 133.34g.

This demonstrates that the limiting reactant is chlorine. The maximum amount of AlCl3 that can be created before the chlorine runs out is 33.87 grams.

The solution, using significant digits, is 33.8g of AlCl3.

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Metals react with water and produce a metal oxide and hydrogen gas. Metal oxides that are soluble in water dissolve in it to further form metal hydroxide. When a metal and water react.

metal oxide and hydrogen gas are formed. The fundamental equation for the metal reaction with water is metal + water = metal oxide + hydrogen. Cold water swiftly reacts with the metals sodium, potassium, and calcium to generate hydroxides. In most cases, they react with water to generate bases or with acids to form salts. MO + H2O M(OH)2 (M = a group 2 metal) As a result, these compounds are frequently referred to as basic oxides. Magnesium oxide, for example, interacts with water to generate magnesium hydroxide, which turns red litmus blue, showing that it is a base. Magnesium oxide + Water Magnesium hydroxide is the chemical formula for this reaction.

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Answer:

Decanting can separate solid-liquid mixtures or mixtures of two immiscible liquids. 

Laboratory equipment is not needed to decant a mixture because one liquid is denser than the other liquid so they separate naturally

Explanation:

Decanting can separate solid-liquid mixtures or mixtures of two immiscible liquids. 

This is because decanting involves carefully pouring of a liquid from one container to another and as such, it can be used to separate immiscible liquids such as oil and water.

The percent yield of ammonia would be 83.3%.

The percent yield of ammonia is a measure of efficiency for a reaction, calculated by dividing the actual yield of the product by the theoretical yield of the product, and multiplying the result by 100. In this case, the actual yield of ammonia was 8.33 grams, while the theoretical yield was 10 grams. By dividing 8.33 by 10 and multiplying by 100, the percent yield of ammonia was determined to be 83.3%. This indicates that the reaction was 83.3% efficient, with the remaining 16.7% unaccounted for.

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This conclusion that coastal California would be an excellent location to drill for oil is most likely based on:

D. Historical data revealing little or no chance of an oil spill.

The conclusion that coastal California will be ideal for oil drilling is based on the historical data that was examined by the analysts. This is a very good way of making environmental and business decisions.

If past data shows that a given trend or pattern is evident, then, intentional businesses should be able to base their findings on these.

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The balanced equation states that for every 6 moles of HNO3 consumed, 2 moles of H2O are produced.

In this case, we are given that 96.00 moles of HNO3 are consumed in the reaction. To find the number of moles of H2O produced, we can use the stoichiometry of the balanced equation. We know that for every 6 moles of HNO3 consumed, 2 moles of H2O are produced. Therefore, we can use the proportion: 2 moles H2O/ 6 moles HNO3 = x moles H2O / 96.00 moles HNO3. Solving for x gives: x = (2 * 96.00) / 6 = 16 moles of H2O are produced when 96.00 moles of HNO3 are consumed. It's important to note that the balanced equation provides the stoichiometry of the reaction which helps us to calculate the number of moles of product produced from the given number of moles of reactant. The balanced equation also tells us that the reaction is stoichiometrically balanced and the number of moles of reactant and product are in a defined ratio.

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The pH of the solution prepared by dissolving 8.00 g of NaOH in 5.00 L of water is 12.598.

It is evident that from the given information, 8.00 g of NaOH (which is a strong base) has been dissolved in 5.00 L of water. So to calculate the pH of a solution we can use the formula:

m = n / M.                     Given :

n = 8.00 g / 40.00 g/mol = 0.200 mol

M = 40.00 g/mol

m = 0.200 mol / 5.00 L = 0.04 mol/L

By knowing  the concentration of hydroxide ions, we can use the relationship:

[OH-] = 10^(-14) / [H+]

pH = -log[H+]

The product of [H+] and [OH-] is always equal to 10^(-14) at 25 degree Celsius. Hence,

[H+] * [OH-] = 10^(-14)

[OH-] = 10^(-14) / [H+]

Substituting the value of [OH-] in the above equation.

pH = - log(10^(-14) / 0.04 ) =

pH = - log(2.5*10^(-13)) =

Therefore, the pH of the solution is 12.598.

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Answer: B: a solvent

Explanation: I hope this helps!

Answer:

In Explanation

Explanation:

Nonpolar molecules have London Dispersion forces as their only intermolecular force. London Dispersion forces are weak attractive forces that exist between all types of atoms and molecules, including nonpolar ones. These forces are caused by the temporary redistribution of electrons within the molecule, which creates temporary dipoles (uneven distribution of electrons) that can attract other nearby molecules. London Dispersion forces are relatively weak compared to other types of intermolecular forces, such as hydrogen bonding and dipole-dipole interactions, but they can still have a significant effect on the properties of nonpolar molecules, such as their boiling and melting points.

(Please give brainlist)

Answer: Dipole-Induced Dipole Forces

Fuerzas de dipolo inducidas por dipolo

Explanation:

These occur between a polar molecule and a nonpolar molecule, and thus must describe solutions. The polar molecule with a permanent dipole induces a dipole moment in the non-polar molecule. The more polarizable the nonpolar molecule, the easier it is to induce a dipole, and so the greater the interaction.

Espanol:

Estos ocurren entre una molécula polar y una molécula no polar y, por lo tanto, deben describir soluciones. La molécula polar con un dipolo permanente induce un momento dipolar en la molécula no polar. Cuanto más polarizable es la molécula no polar, más fácil es inducir un dipolo y, por lo tanto, mayor es la interacción.

The chemical must break down within 283 seconds.

The fact that the rate constant "k" is expressed in units of "s1" indicates that the reaction is a first-order one.

We also have the following for the first-order process from chemical kinetics:

equation is in attached image

Where,

K is the reaction's rate constant.

R0 = starting reactant concentration

R=remaining reactant concentration at time t.

t is the length of time needed for the change to take place.

Considering the query we have,

[tex]K=\frac{2.303}{t} log \frac{R_{0}}{R}\\K=9.05 {*} 10^{-4}S^{-1}[/tex]

R₀=100g

R=100-13=87g

By changing the necessary variables in equation (1), we obtain;

[tex]t=\frac{2.303} k *log \frac{100}{87}\\\\\\t=\frac{2.303}{9.05*10^{-4}} (log100-log87)\\\\t=\frac{2.303} {9.05*10^{-4}} *1.113\\\\t=\frac{2.563}{9.05}*10^{4} sec\\\\t=0.283*10^{4} sec\\\\t=283sec[/tex]

Therefore, 283 seconds are needed for the chemical to break down.

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A chemist wants to make the 5.0 moles of (NH₄)₃PO₄ in the formation of the reaction starting with the constituent elements. The moles of hydrogen gas are needed is 60 moles.

The chemical name of the compound is (NH₄)₃PO₄ is ammonium phosphate.

1 mole of (NH₄)₃PO₄ requires the 12 moles of the hydrogen

1 mole = 6.022 × 10²³ atoms / molecules , this is Avogadro's constant

1 mole of (NH₄)₃PO₄ =  12 moles of the hydrogen

5 moles of (NH₄)₃PO₄ = 5 × 12 moles of the hydrogen

5 moles of (NH₄)₃PO₄ = 60 moles of the hydrogen .

Thus, the moles of hydrogen is 60 moles.

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Neutralizing each mole of [tex]$\mathrm{H}_3 \mathrm{PO}_4$[/tex] will therefore, take three moles of NaOH.

Put the titration formula to use. The formula is molarity (M) of the acid x volume (V) of the acid = molarity (M) of the base x volume (V) of the base if the mole ratio between the titrant and analyte is 1:1. The number of moles of solute per litre of solution is how a solution's concentration, or molarity, is stated.

1M = 1 mol L

[tex]$34.55 \mathrm{~mL}=\frac{34.55}{1000}=0.03455 \mathrm{~L}$[/tex]

n = cV = 0.03455 × 1.500 = 0.05183 mol.

[tex]$\mathrm{H}_3 \mathrm{PO}_4$[/tex] exists inorganic. All three of its H atoms required to neutralized. It takes one [tex]$\mathrm{OH}^{-}$[/tex]to neutralize each H from [tex]$\mathrm{H}_3 \mathrm{PO}_4$[/tex]. Each formula unit of NaOH will provide one [tex]$\mathrm{OH}^{-}$[/tex]ion. Neutralizing each mole of [tex]$\mathrm{H}_3 \mathrm{PO}_4$[/tex] will therefore, take three moles of NaOH

[tex]$n(\mathrm{NaOH})=3 n\left(\mathrm{H}_3 \mathrm{PO}_4\right)=3 \times 0.05183=0.1555 \mathrm{~mol} \text {. }$$[/tex]

[tex]$V=\frac{n}{c}=\frac{0.1555}{1.420}=0.1095 \mathrm{~L}=0.1095 \times 10^3 \mathrm{~mL}=109.5 \mathrm{~mL} \text {. }$$[/tex]

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Flask a contains molecules of oxygen and hydrogen which are gases while flask b contains molecules made up of both oxygen and hydrogen I.e water.

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All aquatic life uses dissolved oxygen in surface water, hence this element is frequently analyzed to determine the "health" of lakes and streams. Both groundwater discharge and atmospheric oxygen enter streams.

The amount of oxygen that is dissolved in the water, or the amount of oxygen that is available to living aquatic organisms, is measured by the term "dissolved oxygen" (DO). We can learn a lot about the water quality of a stream or lake by measuring the amount of dissolved oxygen present.For many years, the USGS has been measuring water. No matter where in the United States the water is being researched, some measures are virtually always made, including temperature, pH, and specific conductance. Dissolved oxygen (DO), a measurement of how much oxygen is dissolved in the water, is another often used indicator that can reveal a lot about the measuement  of (water quality).

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The balanced chemical reaction is Al + 3AgNO3 → Al (NO3)3 + 3Ag.

A balanced chemical equation though has the identical number of atoms from every type inside the reaction on both the reactant chemical equation output sides. In a balanced chemical equation, both the mass and the change were equal.

An organic organization may adjust to changes in its surroundings very easily. It is distinguished by low complexity, low centralization, as well as low formalization. A mechanistic organization, on the other hand, is distinguished by great complexity, high centralization, as well as high formalization.

Thus, the balanced chemical reaction will be Al + 3AgNO3 → Al (NO3)3 + 3Ag.

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The mole fraction, the partial pressure of SF6, the mole fraction of N2F2, the partial pressure of SF6, the partial pressure of N2F2, and the total pressure in the tank are all 0.62, 1.18, and 0.72 atm, respectively.

We must first determine how many moles of each gas are present in the tank in order to calculate their mole fraction and partial pressure. You can use the equation 8.5 / (8.5 + 5.2) = 0.62 if the tank is filled with 8.5 moles of sulfur hexafluoride gas and 5.2 moles of dinitrogen difluoride gas.

Nitrous oxide mole fraction is calculated as follows: (moles of N2F2) / (moles of total both gases) = 5.2 / (8.5 + 5.2) = 0.38.

The ideal gas law, PV = nRT, can be used to determine the tank's overall pressure. The total pressure in the tank can be calculated using the volume of the tank and the number of moles of each gas, assuming a constant temperature.

The formula below to determine the temperature and tank volume if the temperature is 25 degrees Celsius and the tank has a volume of 12 liters.

(Total Pressure) = (8.314 J/mol × K)(298 K) / (12L) (Total Moles).

Approximately is the total tank pressure.

Nine atmospheres.

Then: when considering SF6 partial pressure.

1.18 atm is equal to (0.62) × 1.9 atm.

N2F2 has the following partial pressure:

0.38 and 1.9 atm equals 72 atm.

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Answer:

The equilibrium constant for the reversible reaction N2(g) + 3H2(g) <---> 2NH3 at 400 degrees Celsius is given by K = [NH3]2/[N2][H2]3 = (0.0357)2/(0.0420)(0.516)3 = 0.000457.

Subscript of [tex]H_2[/tex] is number indicating that [tex]H_2[/tex] contains two hydrogen atoms.

A subscript is a character that is printed slightly below and to the side of another character, commonly a letter or a number.

Chemists frequently employ subscripts in their formulations. When writing the chemical formula for water, H2O, a scientist would place the number 2 lower and smaller than the letters to either side of it.

To display the number of electrons in a specific sublevel, use superscripts.

Thus, the subscript of hydrogen represents the number of atoms.

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The number of moles of  C6H18O3 that can be formed is 2 and 264grams of CO2 can be formed from C6H18O3.

Given the substance C6H18O3

Mass of C6H18O3 available (m) = 22.73decagrams = 227.3g

Molar mass of C6H18O3 (M) = 131.28g/mol

We know that number of moles is taken as = mass of substance/Molar mass of that substance

So, number if moles of C6H18O3 = 227.3/138.21 = 1.72

From the reaction: C6H18O3 + 9O2 → 6CO2 + 9H2O

We can see that for every 1 mole of C6H18O3 6 moles of CO2 is formed.

So the mass of CO2(carbon dioxide) used is calculated as:

mass = moles of CO2 x Molar mass of CO2

Molar mass of CO2 = 44g/mol

mass of CO2 = 6 x 44 = 264g

Hence the required mass of CO2 is 264g

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The more stable secondary alkyl radical is easier to create, hence 2 chlorobutane is created quicker than 1 chlorobutane.

Chemical stability in chemistry refers to a chemical system's thermodynamic stability.

When a system is in its lowest energy state or in chemical equilibrium with its surroundings, thermodynamic stability occurs.

In this case, the primary alkyl halide is 1-chlorobutane, while the secondary halide is 2-chlorobutane.

As a result, the SN1 reaction will occur in the 2-chlorobutane more quickly than the 1-chlorobutane.

Since it is simpler to produce the more stable secondary alkyl radical, 2 chlorobutane is produced more quickly than 1 chlorobutane.

Thus, 2-chloro 2-methylbutane is more stable.

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Answer:

B. increase

Explanation:

the pressure will increase because there is more molecules inside the container

The number of moles of the oxygen that have been produced is 51.9 moles.

We know that we can be able to use the stoichiometry of the reaction to be able to obtain the reactants and the products of the reaction. In this case we have the decomposition of the aluminum oxide.

We know that;

Number of moles of the aluminum oxide = 34.6 moles

If 2 moles of the aluminum oxide produces 3 moles of oxygen

34.6 moles of the aluminum oxide would produce

34.6 * 3/2

= 51.9 moles

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Mass may be calculated by multiplying density by volume if you already know the density and the volume.

How much substance is present in a material for each unit of volume is known as the density of an item. As a result, the following formula may be used to determine how an object's mass, m,  density, ρ, and volume, V are connected.

ρ = m/V

where  ρ=8.96 and V=30.5 and m=copper's mass

By entering these values into the equation above, we obtain

8.96 = m/30.5

Cross multiplying results in

m = 8.96x30.5

m = 273.28 g

Consequently, mass of copper is 273.28 g

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To prevent the buildup of difficult-to-remove residue, immediately wash glassware in hot water or a glassware washer after using it. If washing glassware right after after use isn't possible, Corning advises soaking it in water.

Scrub the interior of curved glassware with warm tap water and a brush dipped in soapy water. You can flush the sink with this waste water. To avoid severe water stains, remove soap suds with deionized water. Pouring the DI water rinse through clean glassware should result in a smooth sheet. deliver precise outcomes. Both a dirty lab and erroneous results are hazardous. Lab equipment, particularly glassware, needs to be cleaned after each usage. The outcomes of laboratory studies can be changed by leftovers from earlier experiments, dampness, or even dust particles.

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