moles, number of particles, avogadros
mols = N/avo
how to tell the quantity of moles using a mass
mols =m/mr
empirical formula
molecular formula from emipirical formula
Fm = molecula formula
Fm = (Mr/empirical formula mass) x empirical formula
molar conc
c = mols/volume in dm cubedd
Gas volume
no. moles x22400