7. Gases

Which of the following statements is correct regarding net diffusion?

What is the volume, in liters, of 11.6 g of ethane gas (C_2H_6) at STP? Round your answer to 3 significant figures.

During photosynthesis, which gas is released by plants into the atmosphere?

For the complete combustion of 40.0 liters of hydrogen gas (H_2) at STP, what volume of oxygen gas (O_2) is required?

A sample of gas has a volume of 32 L at 75°C. At what temperature (in °C) will the volume be equal to 16 L, assuming pressure and amount of gas remain constant?

At STP, how many liters of O_2 are required to produce 2 liters of H_2O(g) according to the reaction: 2H_2(g) + O_2(g) → 2H_2O(g)?

When 8 grams of H_2 gas reacts completely with excess O_2 at standard temperature and pressure (STP), what volume of water vapor (H_2O) is produced?

Which of the following lists the approximate concentration (by volume) of CO_2, N_2, and O_2 in dry air?

Which variables are directly related in Gay-Lussac's law for gases?

How many grams of N_2 are required to produce 100.0 L of NH_3 at STP according to the reaction N_2 + 3H_2 → 2NH_3?

When a balloon filled with air is placed into a freezer, which of the following best describes what will happen to the balloon?

Which of the following properties of gases can be directly measured in a laboratory setting?

Which generalization can be made about the relationship between the temperature and volume of a gas, assuming pressure and amount of gas are constant?

Which of the following processes releases carbon dioxide into the atmosphere during gas evolution reactions?

In a gas stoichiometry experiment, a graph shows the volume of O_2 (in liters) on the left y-axis and the volume of CO_2 (in liters) on the right y-axis as a function of time. Which gas is plotted using the y-axis on the right?