What is the mass in grams of #2.2xx10^-3# mol of Sb?
The mass of
The mass of one mole (molar mass) of antimony, Sb, is 121.760 g/mol. This is the atomic weight of Sb on the periodic table written as g/mol.
To determine the mass of a substance when you know the moles, multiply the moles by the molar mass of the substance.