Question

If $0.2$ mol of sodium chloride is required, how many grams of sodium chloride should be taken?

Answer 1

Let the molar mass is $m$ and the number of moles is $n$.

The weight of the substance is given as,

$W=n\times m$

$=0.2\times 58.44$

$=11.688g$

Thus, the weight of sodium chloride should be taken is $11.688g$.