Terms and Definition
Relative Atomic MassThe relative atomic mass of an element is the mass of one atom of the element compared with 1/12 of the mass of an atom of carbon-12
Relative Molecular MassThe relative molecular mass of an element is the average mass of one molecule compared with 1/12 of the mass of an atom of carbon-12
Molar MassThe molar mass of a substance is the mass of one mole of the substance
Molar Volume of a GasThe molar volume of a gas is the volume occupied by one mole of any gas [ 24dm3 at room temperature; 22.4 dm3 at STP]
Molecular FormulaThe molecular formula is the formula that shows the actual number of atoms of each element that are present in a molecule of an element or compound.
Empirical FormulaThe empirical formula is the formula that shows the simplest whole number ratio of atoms of each element in the compound.
MoleMole is the amount of substance that contains as many particles as the number of atoms in exactly 12 g of carbon-12.