# Question #fcd51

Jul 22, 2016

2.7692 x ${10}^{24}$ atoms.
Each mole of substance contains 6.02 x ${10}^{23}$ component parts, in this case water molecules.
If you have 2.3 moles of water you will have 2.3 x 6.02 x ${10}^{23}$ which is 1.3846 x ${10}^{24}$ molecules.
Each molecule contains 2 hydrogen atoms, so the total number of hydrogen atoms in 2.3 moles of water will be 2 x 1.3846 x ${10}^{24}$ = 2.7692 x ${10}^{24}$.