quantatative chemistry

relative formula mass Ar

the average mass of an elements atoms compared to 1/12th of the mass of a single carbon-12 atom

mass of one mole =

Ar

calc moles

n = m/Mr

calc Ar from abundance

(mass A x abundance) + (mass B x abundance) / total abundance

find percentage mass of element of compound

% mass = Ar of element/Mr of compound

calc concentration

concentration = mass/volume

concentration

g/dm³