Question

what is the mass of 12.01 moles of hydrogen gas(H2)

Answer 1

Answer: 24.2109 g

Explanation:

Hydrogen has a molar mass of 1.007947 g/mol so since hydrogen gas has 2 hydrogens, you can multiple this by 2 and then multiply that by 12.01 to get the total mass of 12.01 moles of hydrogen gas.