Answer:
4 moles of He
Explanation:
We have, 16g of He (Helium).
To calculate the number of moles in given amount of a substance, we have the formula.
\(\text{Number of moles} = \frac{\text{Given mass}}{\text{Molar mass}}\).
Here, we have 16g of He.
So, \(\text{Given mass}=16g\)
Molar mass of He is 4g
On substituting the values in the equation, we get
\(\text{Number of moles} = \frac{\text{16}}{\text{4}}\)
\(\text{Number of moles}=4 \text{moles of He}\)
