Molar Mass of Co(NO3)2 (Cobalt(II) Nitrate)

Molar Mass Calculator

What is the molar mass of Co(NO₃)₂?

Answer

M(Co(NO₃)₂) =

182.941 g/mol

Atomic weights: IUPAC standard values (CIAAW, 2024).

Co(NO₃)₂ = Co + 2 × (N + 3 O) → Co 1, N 2, O 6

Contribution of each element
Element	Atoms, n	Atomic weight, A	n × A, g/mol Mass fraction, w	Mass fraction, w
Cocobalt	1	58.933	58.933 w ≈ 32.21%	≈ 32.21%
Nnitrogen	2	14.007	28.014 w ≈ 15.31%	≈ 15.31%
Ooxygen	6	15.999	95.994 w ≈ 52.47%	≈ 52.47%
Σ = 182.941 g/mol w = 100%				100%

Each fraction is rounded on its own, so the printed ones add up to 99.99%; unrounded, they make exactly 100%.

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

Mass fractions of the elements

O 52.47%

Co 32.21%N 15.31%

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Molar masses of substances nearby

Formula	M, g/mol
C₁₃H₁₀O (benzophenone)	182.222
Ni(NO₃)₂ (nickel(II) nitrate)	182.701
Cl₂O₇ (chlorine heptoxide)	182.89
Co(NO₃)₂ (cobalt(II) nitrate)	182.941
C₇H₅NO₃S (saccharin)	183.18
C₉H₁₃NO₃ (epinephrine)	183.207
(CH₃COO)₂Zn (zinc acetate)	183.47

FAQ

What is the molar mass of Co(NO3)2?

M(Co(NO₃)₂) = 182.941 g/mol

How to calculate the molar mass of Co(NO₃)₂?

Add up the atomic weights of all the atoms in the formula: 58.933 + 2 × 14.007 + 6 × 15.999 = 182.941 g/mol.

How many grams are in 2 moles of Co(NO₃)₂?

m = n × M = 2 mol × 182.941 g/mol = 365.882 g.

See Also