Molar mass of potassium carbonate (K2CO3)

The molar mass of potassium carbonate (K2CO3) is 138.204 g/mol.

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Step-by-step calculation

Element	Atoms	Atomic mass	Subtotal
Potassium	× 2	39.098	= 78.196
Carbon	× 1	12.011	= 12.011
Oxygen	× 3	15.999	= 47.997
Total			138.204 g/mol

Percent composition by element

Potassium 56.58%
Carbon 8.69%
Oxygen 34.73%

Try another formula

H₂O NaCl CO₂ C₆H₁₂O₆ H₂SO₄ Ca(OH)₂ CuSO₄·5H₂O C₈H₁₀N₄O₂

Could not read that formula

Related compounds

KHC₈H₄O₄ Potassium hydrogen phthalate KHCO₃ Potassium bicarbonate CH₃COOK Potassium acetate KHC₄H₄O₆ Potassium bitartrate CaCO₃ Calcium carbonate NaHCO₃ Sodium bicarbonate

FAQ

What is the molar mass of K2CO3?

The molar mass of potassium carbonate (K2CO3) is 138.204 g/mol.

How do you calculate the molar mass of K2CO3?

Multiply the atomic mass of each element by the number of its atoms in K2CO3, then add the results: 2 × 39.098 (K) + 1 × 12.011 (C) + 3 × 15.999 (O) = 138.204 g/mol.

What percentage of K2CO3 is Potassium?

Potassium makes up 56.58% of the mass of potassium carbonate (K2CO3).