PLEASE HELP A homeowner buys 55.0 kilograms of propane (C3H8). She wants to know the total mass of carbon dioxide that will be produced when all of the propane combusts with oxygen in the air. In order to do the stoichiometry calculation necessary to answer that question, the homeowner will need all of the following information except-

The molar mass of carbon dioxide
The molar mass of propane
The ratio of coefficients of propane and oxygen in the balanced chemical equation
The ratio of the coefficients of propane and carbon dioxide in the balanced chemical equation