To calculate the mass of 1 mole of calcium carbonate (CaCO3), we need to determine its molar mass by adding up the atomic masses of its constituent elements: calcium, carbon, and oxygen.
1. **Find the atomic masses**: From the periodic table:
– Calcium (Ca) has an atomic mass of approximately 40.08 g/mol.
– Carbon (C) has an atomic mass of approximately 12.01 g/mol.
– Oxygen (O) has an atomic mass of approximately 16.00 g/mol.
2. **Calculate the molar mass of CaCO3**:
– Molar mass = mass of Ca + mass of C + 3 × mass of O
– Molar mass = 40.08 g/mol (Ca) + 12.01 g/mol (C) + 3 × 16.00 g/mol (O)
– Molar mass = 40.08 g/mol + 12.01 g/mol + 48.00 g/mol
– Molar mass = 100.09 g/mol
Thus, the mass of 1 mole of calcium carbonate is approximately 100.09 grams.