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Natalie Goodwin

Feb 20, 2025

If 30.0g of MgSO4*7H2O is thoroughly heated, what mass of anhydrous magnesium sulfate will remain?

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Jonathon Rolfson

Feb 20, 2025

Anhydrous magnesium sulfate would be the mass of magnesium sulfate without the water of crystallization.HenceMass of magnesium sulphate = 24 + 32 + 16 X 4 = 120Mass of hydrated magnesium sulphate= 24 + 32 + 16 X 4 + 7 X 18= 246Mass of anhydrous magnesium sulfate= 120/246 X 30= 14.63414634g= 14.6g (3 significant figures)Hope you have had all your queries cleared.... Show More
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Jonathon Rolfson

Feb 20, 2025

RMM of the whole compound = 246 g Rmm of 7H2O = 126g so RMM of anhydrous sulfate = 120gmass of anhydrous sulfate = (120/246) * 30g = 14.63g.... Show More
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