Blue copper sulfate pentahydrate (CuSO4.5H2O) crystals were heated to give the white monohydrate. What percentage of water was lost? (molar mass of CuSO4.5H2O is 250.5 g/mol)

Answer 1

Ok now you need to find the molar mass of the hydrate.

Then you divide the hydrate by the molar mass which is 250.5g/mol

Answer 2

%H2O = [(5*molar mass H2O/molar mass CuSO4.5H2O)]*100 = ?