Which statement gives the numerical value of the Avogadro constant?
The number of moles of hydrogen atoms in 1.0 g1.0\text{ g}1.0 g of hydrogen gas, H2\text{H}_2H2.
The total number of atoms in 6.0 g6.0\text{ g}6.0 g of water, H2O\text{H}_2\text{O}H2O.
The number of electrons lost by 40.1 g40.1\text{ g}40.1 g of calcium when it reacts completely with chlorine.
The number of ions in 1.0 mole1.0\text{ mole}1.0 mole of aluminium oxide, Al2O3\text{Al}_2\text{O}_3Al2O3.
