Question

How many atoms are in 0.618 moles of combat?

Answer 1

We have given,

Number of moles of Cobalt = $0.618$

We know that,

1 mole of Cobalt have $6.022\times 10^{23}$ atoms

therefore,

0.618 moles have atoms = $0.618\times 6.022\times10^{23}$

= $3.72\times10^{23} {atoms}$