What is the mass of 8.22×10²⁴ molecules of h2

1 mole 6.02 x 10²³ molecules
? mole 8.22 x 10²⁴ molecules

moles of H₂ = ( 8.22 x 10²⁴ ) x 1 / 6.02 x 10²³

 = 13.654 moles of H₂

Mass of H₂ :

Molar mass H₂ = 2.0 g/mol

moles of H₂ x molar mass H₂

( 13.654 ) x ( 2.0 ) = 27.308 g

hope this helps!

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