Take Home Test-- Various Questions

Mr. Holden,

Few questions here about the test....

1) On the first page that is devoted to stoich (for the most part), you say that there are 7.2L of CO2 at standard conditions. I use the standard conversion of 22.4 L/mol for standard conditions. Am i correct in assuming this?

2) When you are given a reaction with gases and you are given concentrations, can you just use the concentrations as if you were given a reaction with liquids and aqueous solutions in order to find the equilibrium constant?

thanks...