Question

what is mass of 10 moles of
h2 gas​

Answer 1

Given: 10 moles of hydrogen gas.

To find: We have to find the mass.

Solution:

The mass of hydrogen gas can be determined by the below steps-

The formula of hydrogen gas is $H_2$.

The atomic mass of H is 1.

Hence the molecular mass of hydrogen gas is 2×1=2g.

1 mole of hydrogen gas contains 2g hydrogen gas.

Thus 10 moles of hydrogen gas have 20g hydrogen gas.

The mass of 10 moles of hydrogen gas is 20g.