What would the volume be of 0.955g of propane at 735 torr and 35.00C?

Question

And

How many mols of xenon would be required to create a mixture with a mole fraction of xenon of 0.0190 if the mixture were also to contain 2.16mol argon and 3.612g neon?

Thanks in adavance

Answer 1

If 5.026g chromium is combined with 3.04L of chlorine gas at 0.955atm
and 220C, what mass of chromium (III) chloride is produced?