Answer to Question #15735 in Other Chemistry for Porscha
The molecular mass of MgSO4*7H2O is 246
The water can be produced y the follow equation:
temperature ---> MgSO4 + 7H2O
The one mole of MgSO4*10H2O can produce 7
moles of water. We need (1.25 g / 18 g/mol)=0.0694 moles of water. Thus, the
amount of epsom salt is 0.0694/7=0.01 moles. The mass of MgSO4*7H2O is
m(MgSO4*7H2O)=0.01 mol * 246 g/mol = 2.46 g.
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