Answer to Question #124075 in Physical Chemistry for claire

Question

A reaction of heating calcium carbonate produces calcium oxide and carbon dioxide gas. heat 10.0 g calcium carbonate until no more carbon dioxide gas is givin off the remaining material has a mass of 5.6 G, what mass of carbon dioxide gas is produced in the reaction

Answer 1

According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.

CaCO₃ = CaO + CO₂

So the mass of CaCO₃ should be the same as the mass of the products (CaO + CO₂)

10.0 g = 5.6 g + x

x = 4.4 g