1.245 g of a sample of CuSO4.xH2O was di...

1.245 g of a sample of `CuSO_4.xH_2O` was dissolved in water and `H_2S` passed till CuS was complete precipitated. The filtrate contained liberated `H_2SO_4`, which required 20 " mL of " `(N)/(2)` NaOH for complete neutralisation. Calculate x, the number of molecules of water associated with `CuSO_4(Cu=63.6)`

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