How Many Moles is 100 g of CaCO₃?
100 grams of calcium carbonate (molar mass 100.09 g/mol) is approximately 1 mole.
Did this tool answer your question?
Thanks — this helps us improve the tool.
How to use this tool
- Enter mass and molar mass in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your amount and the full breakdown beneath it.
Convert 100 g of calcium carbonate to moles — a typical stoichiometry problem.
Frequently asked questions
- What molar mass should I use?
- Look up the molecular formula and sum the atomic masses. Common examples: H₂O = 18.015, CO₂ = 44.009, NaCl = 58.44, glucose C₆H₁₂O₆ = 180.16 g/mol.
- What is a millimole?
- 1 mmol = 0.001 mol. Millimoles are common in biochemistry and medicine where concentrations are small.