Question

$4.6\times {10}^{22}$ atoms of an element weigh 13.8 g. The atomic mass of the element is

Answer 1

$4.6\times {10}^{22}$ atoms of an element weighs 13.8 g
$6.022\times {10}^{23}$ atoms of an element will weigh = $\frac{(13.8\times 6.022\times {10}^{23})}{4.6\times {10}^{22}}=180$