The molar mass of Co(NO₃)₂ is 182.9 g/mol.
The molar mass of a compound is the mass of one mole of that compound.
The molar mass of a compound is determined from the sum of the atomic masses of the elements in the compound.
The molar of Co(NO₃)₂ is determined as follows:
atomic mass of Co = 58.9 g/mol
atomic mass of N = 14 g/mol
atomic mass of O = 32 g/mol
Molar mass of Co(NO₃)₂ = 58.9 + 2 * (14 + 16 * 3)
Molar mass of Co(NO₃)₂ = 182.9 g/mol
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