Question

Calculate the mass per cent of different elements present in sodium sulphate
(Na2so4)​

Answer 1

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Answer 2

Answer:

molecular mass of sodium sulphate =

23×2+ + 32+ 16×4= 142u

mass percent of sulphur= 46/142×100

= 32.39%

mass percent of sulphur = 32/142×100

= 22.53%

mass percent of Oxygen= 64/142×100

= 45.07%

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