If 20 grams of sulfur reacts with an excess of oxygen, what volume of the product SO2 would be collected at 108.5 kPa and 15 degrees Celseius?

Answer 1

S + O2 ==> SO2
mol S = grams/molar mass = ?
Convert mols S to mols SO2 using the coeficients in the balanced equation. In this case mols S = mols SO2.
Then PV = nRT and solve for V at the conditions listed.