Answer : The mass of this sample is, 8.08 grams
Explanation : Given,
Molar mass of [tex]H_2[/tex] = 2.02 g/mol
Moles of [tex]H_2[/tex] = 4.00 mol
Formula used :
[tex]\text{Mass of }H_2=\text{Moles of }H_2\times \text{Molar mass of }H_2[/tex]
Now put all the given values in this formula, we get the mass of this sample.
[tex]\text{Mass of }H_2=4.00mol\times 2.02g/mol[/tex]
[tex]\text{Mass of }H_2=8.08g[/tex]
Therefore, the mass of this sample is, 8.08 grams.
