How is the mass of a compound determined from the number of moles?

The mass of a compound can be determined from the number of moles by using the formula: mass = number of moles × molar mass. The molar mass, which is the mass of one mole of a substance, can be found by summing the atomic masses of all the elements in the compound as listed on the Periodic Table. By multiplying the number of moles of the compound by its molar mass, you obtain the total mass of the compound in grams.