quantatative chemistry

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relative formula mass Ar

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

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mass of one mole =

Ar

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calc moles

n = m/Mr

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calc Ar from abundance

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

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find percentage mass of element of compound

% mass = Ar of element/Mr of compound

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calc concentration

concentration = mass/volume

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concentration

g/dm³