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Calculate the mass % of different elemen...

Calculate the mass % of different elements present in sodium sulphate (Na2SO4).

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We are given a compound `Na_(2)SO_(4)`. Molecular mass of `Na_(2)SO_(4)= 2 xx` atomic mass of Na+ atomic mass of sulphur `+4 xx` atomic mass of oxygen. We are to calculate the percentage composition of Na, S and O
Mass percent of sodim `=(46g)/(142g) xx 100= 32.39%`
Mass percent of sulphur `=(32g)/(142g) xx 100= 22.53%`
Mass percent of oxygen `=(64g)/(142g) xx 100= 45.07%`
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