One balloon is filled with CO₂, while the other contains H₂. They are filled to equal volumes and contain the same number of molecules. Predict the relative densities of the gases in the two balloons.

Question

Quizplus · Accepted Answer

The relative density of a gas is determined by the molar mass of the gas. The molar mass of CO₂ is 44 g/mol (12 + 32 + 1 + 1), while the molar mass of H₂ is 2 g/mol (1 + 32 + 1 + 1). Since both gases have the same number of molecules and the same volume, the gas with the higher molar mass will have the higher density. Thus, the CO₂ gas should be 44/2 = 22 times the density of the H₂ gas.

One Balloon Is Filled with CO2, While the Other Contains

One Balloon Is Filled with CO₂, While the Other Contains