Mole formula

There are five chemical formula rearding the mole which you should know.

The units for the formulae may change depending upon the country, however the formulae are basically the same.

If you are studying senior chemistry at high school you should learn these formula and what each of the terms mean.

Molar Terms

V(g) = the volume of a gas in litres. Unit L

V_M = the volume of 1 mole of gas at a specified temperature and pressure. Unit L.mol^-1

m = the mass of a substance in grams. Unit g

M = the molar mass of a substance. Unitt g.mol^-1

q = the energy change in the reaction. Unit kJ

ΔH_reaction = The molar heat of reaction. The energy change produced by one mole of reactant. Unit kJ.mol^-1

N = The number of particles 

N_A = Avogadro's number. The number of particles in one mole

c = the concentration of a liquid in moles per litre. Unit mol.L-1 or M eg. 2.0 M H₂SO₄ solution

v = the volume of a liquid in litres. Unit L