Fill in each blank below: A mole of any substance contains x 10 particles. One mole of any gas at STP has a volume of liters. To convert between moles and grams, it is necessary to find the using the periodic table.

Which of the following gas samples would have the largest volume, if all samples are at the same temperature and pressure? a 263g of Xe; b 51023 molecules of H2; c 4.00moles of CO2; d they would all have the same volume.

Consider these four gas samples, all at the same temperature. The larger boxes have twice the volume of the smaller boxes. Rank the gas samples with respect to: (a) pressure, (b) density, (c) average kinetic energy, and (d) average molecular speed. (Green spheres are He; violet spheres are Ne.)

Below is a plot similar to the one from question 2, but this time there are multiple gases and each gas is at the same temperature. Which gas has the highest molecular mass? Which has the smallest? Explain how you make this determination. Mass A Mass B Mass C Velocity %# of molecules