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Asked Oct 10, 2019
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f 37.0 g of MgSO4⋅7H2O is thoroughly heated, what mass of anhydrous magnesium sulfate will remain?

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Expert Answer

Step 1

On strong heating, water molecules get removed and turn hydrated salt into anhydrous salt.

The molecular mass of  (MgSO4.7H2O) hydrated salt is 246.47g/mol.

The molecular mass of MgSO4 salt is 120.36 g/mol.

Given the mass of  MgSO4.7H2O is 37 g.

Step 2

No. of moles is the given mass of substance divided by its molecular mass. It is represented by equation 1 where n is no. of mole, m ...

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(1) n м 37 g 246.47 g mol-1 n = 0.150 mol

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