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Question

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


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Solution

Step 1: Molar mass:

  • The mass of 1 mole of a substance is called its molar mass.

Step 2: Formula for molar mass:

  • Molarmass=Theatomicmassofelement×numberofatomsgiveninsubscript

Step 3: Calculation for Molar mass of copper (II) chloride CuCl2:

MolarmassofCuCl2=AtomicmassofCu+AtomicmassofClMolarmassofCuCl2=63.54gmol-1+2×35.45gmol-1MolarmassofCuCl2=63.54gmol-1+70.9gmol-1=134.44gmol-1

Thus, the molar mass of copper (II) chloride is 134.44gmol-1.


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