What mass of water is in 150 g of mgso4×7h2o

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10-04-2018
Chemistry

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What mass of water is in 150 g of mgso4×7h2o

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kenmyna kenmyna · Answer 1 · 2018-04-20T11:12:30+02:00

The mass of water that is in 150 g of Mgso4.7H20 is calculated as follows

mass of water= molar mass of H20 in MgSO4.7H20 /total molar mass of MgSO4.7H20 x mass ( 150g)

molar mass of h20 = 18 x 7= 126 g/mol since there is 7 water molecules
molar mass of MgSO4.7H20= 24 + 32 + (16x4) + (18x7) = 246g/mol

Mass of water is therefore= 126 g/mol/246g/mol x150g =76.8 g