This answer is not correct. You have multiplied by the pressure rather than divided by the pressure. Remember that when you change an algebraic expression (PV = nRT), you must do the same operation on both sides of the equal sign. In this case you must divide both sides of the expression by P thus obtaining... V = nRT/P.

You also forgot to convert the grams of carbon dioxide into moles of carbon dioxide. The units of the gas law constant are in moles not grams. Try doing this and using the above formula and see what happens.