The number of moles of sodium oxide in 620 g of it is

The number of moles of sodium oxide in 620 g is

The number of moles of sodium oxide in 620 g is ___

The number of moles of sodium hydroxide in 520 g is

The number of moles of Magnesium oxide in 680 g is

The number of moles of Calcium oxide in 672 g is

The number of moles of sodium chloride in 585 g is

The number of moles of Nitric oxide in 540 g is

The number of moles of Nitrous oxide in 440 g is

Calculate the number of moles of magnesium oxide, MgO in 10 g of the compound. (Average atomic masses of Mg =24 and O =16)