Final answer:
The molar mass of calcium carbonate (CaCO3) is calculated by summing the molar masses of its constituent elements: calcium, carbon, and oxygen. Taking into account their respective quantities in the chemical formula, the molar mass comes out to be 100.09 g/mol.
Step-by-step explanation:
To find the molar mass of CaCO3, which stands for calcium carbonate, we need to calculate the total weight of all the atoms in one mole of the substance. This involves adding together the molar mass of calcium (Ca), carbon (C), and oxygen (O), while taking into account the number of each type of atom present in the formula. The molar masses are 40.08 g/mol for calcium, 12.01 g/mol for carbon, and 16.00 g/mol for oxygen. Since there is one atom of calcium and carbon each and three atoms of oxygen in CaCO3, the molar mass can be calculated as follows:
Molar mass of CaCO3 = (1 x 40.08 g/mol) + (1 x 12.01 g/mol) + (3 x 16.00 g/mol)
Molar mass of CaCO3 = 40.08 g/mol + 12.01 g/mol + 48.00 g/mol
Molar mass of CaCO3 = 100.09 g/mol
Therefore, the molar mass of calcium carbonate (CaCO3) is 100.09 g/mol.