Using the same unbalanced chemical reaction, what is the theorectical yeild of CO2 if 16.0g of methane reacts with excess oxygen:

Question

CH4(g)+ O2 (g)→ CO2 (g)+ H2O(g)

Answer 1

mols CH4 = grams CH4/molar mass CH4 = ?
Using the coefficients in the balanced equation, covert mols CH4 to mols CO2.
Now convert mols CO2 to grams (I suppose you want it in grams) by grams = mols CO2 x molar mass CO2 = ? This is the theoretical yield in grams.