Question

In 23.3 g zinc, the number of moles it occurs.

Answer 1

Explanation:

Mass/Molar Mass=No. of moles

Answer 2

The number of moles are 0.356.

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at NTP, weighs equal to the molecular mass and contains avogadro's number $6.023\times 10^{23}$ of particles.

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$

Given mass= 23.3 g

Molar Mass = 65.38 g/mol

$\text{Number of moles of zinc}=\frac{23.3g}{65.38g/mol}=0.356moles$

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