Question

$60g$ of carbon element has ___ moles of carbon atoms.

Answer 1

Convert mass into moles:

To calculate the number of moles in a particular amount of substance, divide the given mass of the substance by its relative molar mass.

From the. given data,

Mass of carbon = $60g$

Number of moles of carbon = (Given mass/Molar mass)

Number of moles of carbon = $\frac{60\mathrm{g}}{12\mathrm{g}/\mathrm{mol}}$ = $\begin{array}{rcl}& & 5\mathrm{mol}\end{array}$

$60g$ of carbon element has $5$ moles of carbon atoms.