Exam 5: Gases

If the pressure in a gas container that is connected to an open-end U-tube manometer is 116 kPa and the pressure of the atmosphere at the open end of the tube is 752 mmHg, the level of mercury in the tube will

Calculate the temperature if 0.0139 moles of Ne has a pressure of 1.237 bar in a 250 mL container.

Convert 1.25 atm to bar.

Determine the density of O₃ gas at 341 K and 2.14 bar.

Determine the total volume of all gases (at STP) formed when 50.0 mL of TNT C₃H₅(NO₃)₃, d = 1.60 g mL^-1, molar mass = 227.10 g mol^-1) reacts according to the following reaction: 4C₃H₅(NO₃)₃(l) → 6N₂(g) + O₂(g) + 12CO₂(g) + 10H₂O(g)

The density of a gas is 3.12 g at STP. What is the gas?

What volume will a balloon occupy at 1.01 bar if the balloon has a volume of 7.6 L at 3.85 bar?

Which statement is TRUE about kinetic molecular theory?

Define hypoxia.

Determine the density of gas at 435 K and 1.00 bar.

Which of the following statements is TRUE?

The action of some commercial drain cleaners is based on the following reaction: 2NaOH(s) + 2Al(s) + 6H₂O(l) → 2NaAl(OH)₄(s) + 3H₂(g) What is the volume of H₂ gas formed at STP when 6.32 g of Al reacts with excess NaOH?

An unknown ideal gas was added to an evacuated 775 mL container at a temperature of 267.2 K. If 0.381 moles were added, what is the final pressure?

In a container containing CO, H₂, and O₂, what is the mole fraction of CO if the H₂ mole fraction is 0.22 and the O₂ mole fraction is 0.58?

The ratio of the rate of effusion of oxygen to an unknown gas is 0.935. What is the other gas?

What is the definition of diffusion?

Why does the rate of effusion increase with a decrease in the molar mass?

What is the volume of 9.783 × 10²³ atoms of He at 9.25 bar and 512 K?

A syringe initially holds a sample of gas with a volume of 285 mL at 355 K and 1.88 bar. To what temperature must the gas in the syringe be heated/cooled to have a volume of 435 mL at 2.50 bar?

How many grams of F₂ gas are there in a 5.00 L cylinder at 5.327 bar and 23 °C?