C4 Stoichiometry
I can do all the equation things and so can you.
Relative molecular mass, Mr, is the sum of the relative atomic masses of a compound. E.g. H2O would be 2 + 16 = 18.
Mole is the Avogadro’s constant, which defines a specific number of atoms.
The molar gas volume is 24 dm3 at room temperature and pressure. This applies for ANY GAS. Remember to convert the unit.
IGCSE REVISION 