CaCO3 --> CO2 + CaO
A scientist heats 30 of calcium carbonate (CaCO3) in the chemical reaction shown. What is the total mass of the products?
To find the total mass of the products, we need to determine the molar masses of carbon dioxide (CO2) and calcium oxide (CaO).
The molar mass of carbon dioxide (CO2) is calculated by adding the molar masses of carbon (C) and two oxygen (O) atoms.
Molar mass of C = 12.01 g/mol
Molar mass of O = 16.00 g/mol
Molar mass of CO2 = (12.01 g/mol) + 2(16.00 g/mol) = 12.01 g/mol + 32.00 g/mol = 44.01 g/mol
The molar mass of calcium oxide (CaO) is calculated by adding the molar masses of calcium (Ca) and oxygen (O).
Molar mass of Ca = 40.08 g/mol
Molar mass of O = 16.00 g/mol
Molar mass of CaO = 40.08 g/mol + 16.00 g/mol = 56.08 g/mol
Since the balanced equation states that one mole of calcium carbonate produces one mole of carbon dioxide and one mole of calcium oxide, we can use the molar masses to determine the total mass of the products.
Total mass of CO2 produced = (30 g CaCO3) * (44.01 g CO2 / 100 g CaCO3) = 13.203 g
Total mass of CaO produced = (30 g CaCO3) * (56.08 g CaO / 100 g CaCO3) = 16.824 g
Therefore, the total mass of the products is 13.203 g of carbon dioxide and 16.824 g of calcium oxide.