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# What is the molar mass of copper (II) chloride?

Last updated date: 21st Jul 2024
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Hint: Molar mass of any compound is the measure of the sum of the atomic masses of all the elements present in respective quantities in that compound or substance. The molecular weight is measured in grams per mole. It is the weight of any atom in 1 mole that is $6.022\times {{10}^{23}}$ particles of that atom. So it is measured in g/mol.

Copper (II) chloride is formed by the transfer of electrons from copper to chloride atom. Therefore it is an ionic compound. It is formed as Cl needs 1 electron to complete its fully filled configuration, and copper is in the valency of +2 here, that means 2 chlorine atoms of -1 charge will be needed to form copper (II) chloride, so the formula of copper (II) chloride is $CuC{{l}_{2}}$ , this means the sum of atomic mass of 1 copper atom and 2 chlorine atoms will give its molar mass.
Molar mass of $CuC{{l}_{2}}$= 134.446 g/mol