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3.2 Relative Masses of Atoms & Molecules
Define relative atomic mass (Ar).
3.2 Relative Masses of Atoms & Molecules
The relative atomic mass (Ar) is the average mass of the isotopes of an element compared to 1/12th of the mass of a carbon-12 atom. It can be found on the Periodic Table.
Cards in this deck
Define relative atomic mass (Ar).
The relative molecular mass (Mr) of a compound is calculated by adding up the ..........</ of all atoms in the formula For H2O (Ar: H = 1, O = 16), the Mr = ............
True or False? The terms "relative molecular mass" and "relative formula mass" mean the same thing and can be used interchangeably for any compound.
Calculate the relative formula mass of calcium carbonate, CaCO3. (Ar: Ca = 40, C = 12, O = 16)
True or False? In a chemical reaction, the total mass of the products always equals the total mass of the reactants.
The relative formula mass of MgCl2 (Ar: Mg = 24, Cl = 35.5) is ............