Ch 202 Problem 10.50

(a) Calculate the density of sulfur hexafluoride gas at 707 torr and 21^oC.

For the density of an ideal gas, we have

molar mass of SF₆ (remember molecular compounds?:)

now,

(b) Calculate the molar mass of a vapor that has a density of 7.135 g/L at 12^oC and 743 torr.

same drill, but we solve for molar mass M

DAC 4/16/10