Molar Mass of CaCO3

How to work out the molar mass of CaCO3

1. Count the atoms of each element in CaCO3: 1 Ca, 1 C and 3 O.
2. Multiply each count by the element's atomic weight: 1 × 40.078 = 40.078; 1 × 12.011 = 12.011; 3 × 15.999 = 47.997.
3. Add the results: 40.078 + 12.011 + 47.997 = 100.086 g/mol.

Frequently asked questions

What is the molar mass of CaCO3?

The molar mass of calcium carbonate (CaCO3) is 100.086 g/mol, so one mole of it weighs 100.086 grams.

How many moles are in 100 grams of CaCO3?

100 g ÷ 100.086 g/mol = 0.999 mol.

Which element makes up most of the mass of CaCO3?

O, at 47.96% of the mass.