Question

what is 8 × 2000? and

Answer 1

simple, it's a multiplication

I multiply the number of atoms with the weight of each one to find the total weight of the gas

$(5.04\times10^{23})\times(1.67\times10^{-24}^{})$

We group

$(5.04\times1.67)\times(10^{23}\times10^{-24})$

and solve

$\begin{gathered} (8.4168)\times(10^{-1}) \\ =0.84168 \end{gathered}$

the result is: 0.84 grams