MgSO4•7H2O is an example of hydrate, a substance that has fixed mass percent of water in...

MgSO4•7H2O is an example of hydrate, a substance that has fixed mass percent of water in the compound. Calculate the mass percent (%) composition of water in MgSO4•7H2O. (show your work.)

Expert Solution

MgSO₄.7H₂O

%water = [(mass of water)/(mass of entire compound)] x 100

Mg : 1 x 24.3 g = 24.3 g

S : 1 x 32.0 g = 32.0 g

O : 4 x 16.0 g = 64.0 g

H₂O : 7 x 18.0 g = 126.0 g

TOTAL = 246.3 g

So, %water = [(126 g)/(246.3 g)] x100

= 51.16 %

queen_honey_blossom answered 2 hours ago

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MgSO4•7H2O is an example of hydrate, a substance that has fixed mass percent of water in...

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