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Question

What is the molar mass of helium gas?


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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 HeliumHe gas:

  • Helium is a non-toxic/non-combustible gas.
  • The molar mass of HeliumHe gas is 4.00gmol-1.

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