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140 solutions

The Ideal Gas Law

Q. Consider two flasks at 25°C, one contains an ideal gas and the other contains the real gas SO3. Which statement regarding these gases is true? a. As the temperature approaches 0 K, the volume of the ideal gas will be smaller than the volume of SO3 because ideal gases have larger values of the van der Waals coefficient a. b. As the temperature is decreased, the ideal gas will liquefy first because ideal gases have larger values of the van der Waals coefficient b. c. After the temperature is increased about 100 K, the pressure of the ideal gas will be smaller than the pressure of SO3 because the van der Waals coefficient a for SO3 is large. d. After the temperature has been lowered about 100 K, the pressure of the ideal gas will be smaller than the pressure of SO3 because the van der Waals coefficient a for SO3 is large. e. As the temperature approaches 0 K, the volume of the ideal gas will be larger than the volume of SO3 because ideal gases lack intermolecular forces.

Solved • Dec 11, 2019

The Ideal Gas Law

Q. Hydrochloric acid reacts with aluminum sulfite in the following way: 6 HCl (aq) +Al2(SO3)3 (s) -> 3 SO2 (g) + 3 H2O (l) + 6 AlCl3 (aq) the reaction is done at 22.7 degrees C and 0.954 atm, to produce 28.2 mL of sulfur dioxide gas. How many grams of aluminum sulfite was used in this reaction? I was able to work out that moles of SO2 are 0.0011076 using the PV=nRT formula; I am just not how to proceed.

Solved • Dec 8, 2019

The Ideal Gas Law

Q. A sample of a gas in a piston/cylinder apparatus occupies 49 mL at 1.06 atm and 10.9 °C. If the volume of the sample is increased to 68.7 mL and the temperature changes to 48.3 °C, what is the new pressure in atm, of the sample? Enter your answer with three decimal places and no units.

Solved • Dec 5, 2019

The Ideal Gas Law

Q. A balloon is filled to a volume of 13.9L at a temperature of 27.1ºC. If the pressure in the balloon is measured to be 2.20 atm, how many moles of gas are contained inside the balloon?

Solved • Dec 4, 2019

The Ideal Gas Law

Q. a 250.0 L gas tank contains 1 kg H2 (g), 400 g N2(g), and 120 of O2 (g). What is the total pressure (in atm) inside the tank at 50C? a) 54.4 b)36.4 c)2.8 d) 77.1

Solved • Dec 2, 2019

The Ideal Gas Law

Q. Chloroform (CHCl3) gas is collected in a 129 cm3 flask at 80C and exerts a pressure of 10.99 atm. How much chloroform (in g) was collected? a) 1.3 b) 24.5 c)63.4 d)5.8

Solved • Dec 2, 2019

The Ideal Gas Law

Q. The apparatus shown consists of three temperature jacketed 1.025 L bulbs connected by stopcocks. Bulb A contains a mixture of H2O(g), CO2(g), and N2(g) at 25°C and a total pressure of 553 mmHg. Bulb B is empty and is held at a temperature of -70°C. Bulb C is also empty and is held at temperature of -190°C. The stopcocks are closed, and the volume of the lines connecting the bulbs is zero. CO2 sublimes at -78°C, and N2 boils at -196°C. (Figure 1) How many moles of CO2 are in the system?

Solved • Nov 25, 2019