For convenience, this worksheet allows you to select different mass, volume, and concentration units, and the necessary conversions are carried out for you to obtain the value of the blank cell in the desired unit. Note that the unit of molecular weight must be g/mol. Molecular weight of so...
Molar Mass You need to calculate molar mass if you have more than one atom in a problem. It’s easy… just add the masses together and multiply time the number of atoms in the molecule (subscript) For example: H2O Hydrogen =1 Oxygen =16; There are 2 hydrogens and 1 oxygen so the ...
MOLAR MASS OF COMPOUNDS The molar mass of a compound is the sum of the molar mass of the individual elements H = 1g O = 16g 1 mole of H2O (6.02 x 1023 molecules H2O) = O + H + H = 16g + 1g + 1g = 18 g H2O H = 1g Molar Mass of Compounds Add up the molar mass of al...