Molar Mass of Ca(ClO)2 (Calcium Hypochlorite)

Molar Mass Calculator

What is the molar mass of Ca(ClO)₂?

Answer

M(Ca(ClO)₂) ≈

142.98 g/mol

Atomic weights: IUPAC standard values (CIAAW, 2024); the sum is rounded to the decimal places of the least precise one — Cl: 35.45.

Ca(ClO)₂ = Ca + 2 × (Cl + O) → Ca 1, Cl 2, O 2

Contribution of each element
Element	Atoms, n	Atomic weight, A	n × A, g/mol Mass fraction, w	Mass fraction, w
Cacalcium	1	40.078	40.078 w ≈ 28.03%	≈ 28.03%
Clchlorine	2	35.45	70.90 w ≈ 49.59%	≈ 49.59%
Ooxygen	2	15.999	31.998 w ≈ 22.38%	≈ 22.38%
Σ = 142.976 ≈ 142.98 g/mol w = 100%				100%

Atomic weights: CIAAW, Abridged Standard Atomic Weights (2024)

Mass fractions of the elements

Cl 49.59%

Ca 28.03%O 22.38%

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Molar masses of substances nearby

Formula	M, g/mol
Na₂HPO₄ (dibasic sodium phosphate)	141.958
Na₂SO₄ (sodium sulfate)	142.04
C₁₀H₂₂ (decane)	142.286
Ca(ClO)₂ (calcium hypochlorite)	142.98
Cu₂O (copper(I) oxide)	143.091
AgCl (silver chloride)	143.32
MoO₃	143.95

FAQ

What is the molar mass of Ca(ClO)2?

M(Ca(ClO)₂) ≈ 142.98 g/mol

How to calculate the molar mass of Ca(ClO)₂?

Add up the atomic weights of all the atoms in the formula: 40.078 + 2 × 35.45 + 2 × 15.999 = 142.976 ≈ 142.98 g/mol.

How many grams are in 2 moles of Ca(ClO)₂?

m = n × M = 2 mol × 142.98 g/mol = 285.96 g.

See Also