# How many moles of cobalt are in 6.97*10^23 atoms of cobalt?

Sep 15, 2016

There are $\text{1.16 mol Co}$ in $6.97 \times {10}^{23}$ atoms of Co.

#### Explanation:

Identify the relationship between 1 mol Co and Avogadro's number of atoms.

$\text{1 mol Co}$$=$$6.022 \times {10}^{23} \text{atoms Co}$

Divide the given atoms of cobalt by the number of atoms per mol.

$6.97 \times {10}^{23} \cancel{\text{atoms Co"xx("1 mol Co")/(6.022xx10^23cancel"atoms Co")="1.16 mol Co}}$