Question

5.080 x 1016 molecules of hydrogen (gas) to moles

Answer 1

The relation of moles to molecules can be known through the Avogadro’s number. Take note that one mole of any substance is equal to 6.02 x 10^23 molecules. Thus in converting 5.080 x 10^16 molecules of hydrogen to moles, just divide it with the Avogadro’s number. The answer would be 8.44 x 19^-8 moles. 

Answer 2

Answer:

$n_{H_2}=8.436x10^{-8}molH_2$

Explanation:

Hello,

In this case, since hydrogen gas is diatomic, H₂, and 1 mole is related with 6.022x10²³ molecules, the moles are computed below via dimensional analysis:

$n_{H_2}=5.080x10^{16}molecH_2*\frac{1molH_2}{6.022x10^{23}molecH_2} \\n_{H_2}=8.436x10^{-8}molH_2$

Best regards.