Question

Calculate the number of atoms in the following $0.8$ mole atoms of hydrogen.

Answer 1

$1$ mole of Hydrogen contains $6.02\times {10}^{23}$ atoms

$0.8$ mole of Hydrogen would contain $\Rightarrow 0.8\times 6.02\times {10}^{23}$ atoms

$\Rightarrow 0.48\times {10}^{23}$ atom

$\Rightarrow 4.8\times {10}^{22}$ atom