posted by Anonymous .
Lime, CaO, is produced by the decomposition reaction CaCO3(s) ® CaO(s) + CO2(g). What weight of CO2 is obtained by the decomposition of 38.7 g of CaCO3?
mols CaCO3 = grams/molar mass.
Convert mols CaCO3 to mols CO2 using the coefficients in the balanced equation.
Now convert mols CO2 to grams. g = mols x molar mass.