Molar Mass of CsOH (Caesium Hydroxide)

Molar Mass Calculator

What is the molar mass of CsOH?

Answer

M(CsOH) ≈

149.92 g/mol

Atomic weights: IUPAC standard values (CIAAW, 2024); the sum is rounded to the decimal places of the least precise one — Cs: 132.91.

Contribution of each element
Element	Atoms, n	Atomic weight, A	n × A, g/mol Mass fraction, w	Mass fraction, w
Cscaesium	1	132.91	132.91 w ≈ 88.66%	≈ 88.66%
Ooxygen	1	15.999	15.999 w ≈ 10.67%	≈ 10.67%
Hhydrogen	1	1.0080	1.0080 w ≈ 0.67%	≈ 0.67%
Σ = 149.917 ≈ 149.92 g/mol w = 100%				100%

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

Mass fractions of the elements

Cs 88.66%

O 10.67%H 0.67%

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Molar masses of substances nearby

Formula	M, g/mol
C₅H₁₁NO₂S (DL-methionine)	149.21
AgOCN (silver cyanate)	149.89
NaI (sodium iodide)	149.89
CsOH (caesium hydroxide)	149.92
C₄H₆O₆ (tartaric acid)	150.086
Al₂S₃ (aluminium sulphide)	150.14
C₁₀H₁₄O (thymol)	150.221

FAQ

What is the molar mass of CsOH?

M(CsOH) ≈ 149.92 g/mol

How to calculate the molar mass of CsOH?

Add up the atomic weights of all the atoms in the formula: 132.91 + 15.999 + 1.0080 = 149.917 ≈ 149.92 g/mol.

How many grams are in 2 moles of CsOH?

m = n × M = 2 mol × 149.92 g/mol = 299.84 g.

See Also