Calcium carbonate can undergo a chemical reactions to produce calcium oxide and carbon dioxide. which possible masses of calcium oxide and carbon dioxide can form when 200 g of calcium carbonate undergoes this chemical reaction?
A. 200 g CaO and 200 g CO^2
B. 112 g CaO and 88 g CO^2
C. 56 g CaO and 44 g CO^2
D. 40 g CaO and 12 g CO^2
B. 112 g CaO and 88 g CO2
Explanation:
1. Calculate the molar mass of each compound:
- CaCO3: 40.08 g/mol (Ca) + 12.01 g/mol (C) + 3(16.00 g/mol) = 100.09 g/mol
- CaO: 40.08 g/mol (Ca) + 16.00 g/mol (O) = 56.08 g/mol
- CO2: 12.01 g/mol (C) + 2(16.00 g/mol) = 44.01 g/mol
2. Use stoichiometry to determine the theoretical yield of CaO and CO2:
- 200 g CaCO3 x (1 mol CaCO3 / 100.09 g CaCO3) x (1 mol CaO / 1 mol CaCO3) x (56.08 g CaO / 1 mol CaO) = 112.16 g CaO
- 200 g CaCO3 x (1 mol CaCO3 / 100.09 g CaCO3) x (1 mol CO2 / 1 mol CaCO3) x (44.01 g CO2 / 1 mol CO2) = 88.1 g CO2
Therefore, the possible masses of CaO and CO2 are approximately 112 g and 88 g, respectively.