Chapter 3, Problem 35QP

Interpretation Introduction

Interpretation:

The number of moles of cobalt for $6\times {10}^9\text{ Co atoms}$ is to be calculated.

Concept introduction:

There are $6.022\times {10}^{23}\text{ atoms}$ in one mole of a substance, Avogadro’s number.

Number of moles of any element with given number of atoms can be calculated as

$\frac{1\text{ mol}}{6.022\times {10}^{23}}\times \text{ Number of atoms of element}$

$$