Question

A glass of Water contains $5$ Moles of Water. How many molecules of water are present ?

Answer 1

We know,

1. The formula of water is ${\mathrm{H}}_2\mathrm{O}$, there are 2 hydrogen atoms and 1 oxygen atom in it.
2. $1$ Mole of molecule contains $6.022\times {10}^{23}$ Molecules.
3. $5$ Moles of Water Contains $5\times [6.022\times {10}^{23}]$ Molecules of water

Hence, $5$ Moles of Water Contains $3.01\times {10}^{24}$ Molecules of water.