The total number of molecules in \(36 \mathrm{gram}\) of water is \(12.044 \times 10^{23}\).
Explanation:
No. of moles of water = Given mass / molar mass of water \(=36 / 18=2\)
No. of molecules \(=\) No. of moles \(\times\) Avogadro number \(=2 \times 6.022 \times 10^{23}\) \(=12.044 \times 10^{23}\) molecules
