Question

How many moles of atoms are contained in $32.7g$ of Zinc?

Answer 1

The number of moles in Zinc is calculated by:

Step1: Formula used-

Moles $=$Mass of the element($\mathrm{g}$)$/$Molar mass(${\mathrm{gmol}}^{-1}$)

Step 2: Given-

Molar mass of Zinc $=65\mathrm{g}/\mathrm{mol}$

Given mass of Zinc $=32.7\mathrm{g}$

Step3: Calculation -

The number of moles present in $32.7\mathrm{g}$ of Zinc $$\begin{gathered} =32.7\mathrm{g}/65{\mathrm{gmol}}^{-1} \\ =0.5\mathrm{moles} \end{gathered}$$

Hence, $0.5$ moles are present in $32.7g$ of Zinc.