Answers

2014-06-11T21:18:18+05:30
Where the atomic mass of Mg is 24/ O is 16/Su is 32 and for water is 18,using atomic mass v can  find the mass ratio 
9.76/24=0.406
26.01/16=1.625
13.01/32=0.406
51.22/18=2.846
Then divide the mass ratio with the simple ratio/ where simple ratio value is 0.406 /now v can find the moles using that v can find the empirical formula
the empirical formula for this is MgSO₄.7H₂O
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