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11.E: Exercises

Last updated

Aug 25, 2020
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- 11.11: Real Gases- The Effects of Size and Intermolecular Forces
- 12: Liquids, Solids, and Intermolecular Forces

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11.5: Applications of the Ideal Gas Law: Molar Volume, Density and Molar Mass of a Gas

If 100 mL of $\ce{HCl}$ gas at 300 K and 100 kPa dissolves in 20 mL of pure water, what is the concentration?

Hint: 0.4 mol/L

Skill:
Calculate n using ideal gas law.
If 100 mL of $\ce{HCl}$ gas at 300 K and 100 kPa dissolved in pure water requires 12.50 mL of the $\ce{NaOH}$ solution to neutralize in a titration experiment, what is the concentration of the $\ce{NaOH}$ solution?
Hint: 0.32 mol/L

Skill:
Apply ideal gas law to solve stoichiometry problems.
If 100 mL of $\ce{HCl}$ gas at 300 K and 200 kPa dissolved in pure water requires 12.50 mL of the $\ce{NaOH}$ solution to neutralize in a titration experiment, what is the concentration of the $\ce{NaOH}$ solution?

Hint: 0.64 mol/L

Skill:
Solve stoichiometric problem.
Hydrogen sulfide reacts with sulfur dioxide to give $\ce{H2O}$ and $\ce{S}$ ,
$\ce{H2S + SO2 \rightarrow H2O + S_{(solid)}}$ , unbalanced

If 3.0 L of $\ce{H2S}$ gas at 760 torr produced 4.8 g of sulfur, calculate the temperature in C.

Hint: 93 degrees C

Skill:
Apply ideal gas law to solve stoichiometry problems.
When 10.0 mL of $\ce{AgNO3}$ solution is treated with excess amount of $\ce{HI}$ gas to give 0.235 g of $\ce{AgI}$ , what is the concentration of the $\ce{AgNO3}$ solution?

Hint: 0.10 M
When an $\ce{AgNO3}$ solution is treated with 50.0 mL of $\ce{HI}$ gas to give 0.235 g of $\ce{AgI}$ , what is the concentration of the $\ce{HI}$ gas?

Hint: 0.020 mol/L
When an $\ce{AgNO3}$ solution is treated with 50.0 mL of $\ce{HI}$ gas at 300 K to give 0.235 g of $\ce{AgI}$ , what is the pressure of the $\ce{HI}$ gas?

Hint: 0.49 atm

Discussion:
Depending on the numerical values you use, you may get the pressure in other units.
When an $\ce{AgNO3}$ solution is treated with 50.0 mL of $\ce{HI}$ gas at 374 torr to give 0.235 g of $\ce{AgI}$ , what is the temperature of the $\ce{HI}$ gas?

Hint: 300 K

Discussion:
Note the relationship of this problem with the previous one.

11.5: Applications of the Ideal Gas Law: Molar Volume, Density and Molar Mass of a Gas

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