The molar mass of Calcium Oxide (CaO) is calculated by adding the atomic masses of calcium (Ca) and oxygen (O). The atomic mass of calcium is approximately 40.08 g/mol, and the atomic mass of oxygen is approximately 16.00 g/mol.
To find the molar mass of CaO:
Molar mass of CaO = Atomic mass of Ca + Atomic mass of O
Molar mass of CaO = 40.08 g/mol + 16.00 g/mol = 56.08 g/mol
Therefore, the molar mass of CaO is 56.08 g/mol.