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We are given the relative formula mass (RFM) of CaO and CO₂, we should therefore calculate the RFM of CaO^₃:

RFM of CaCO₃ = 40 + 12 + (16 x 3) =...

The relative formula mass (RFM) is simply just a sum of the atomic masses that make up the compound in question.

Ca = 40

C = 12

O = 16

RFM of CaC...

There are two ways to work this out, one is a lot simpler than the other, I will post the simpler method here.

The relative formula mass of magnesium oxide, MgO (40), is just a sum of the...

The first step here is to determine the mass of C in CO₂ and the mass of H in H₂O. This is done by dividing the relative atomic mass, Mr, by the relative molecular mass of the com...