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Question

What is the molar mass of barium chloride BaCl2 ?


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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: Molar mass of Barium chloride BaCl2:

MolarmassofBaCl2=AtomicmassofBa+AtomicmassofClMolarmassofBaCl2=137.34gmol-1+2×35.45gmol-1MolarmassofBaCl2=137.34gmol-1+70.9gmol-1=208.23gmol-1

Thus, the molar mass of acetic acid is 208.23gmol-1.


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