Chapter 3, Problem 97AE

A 0.755-g sample of hydrated copper(II) sulfate ${\text{(CuSO}}_{\text{4}}\cdot x{\text{H}}_{\text{2}}\text{O)}$ was heated carefully until it had changed completelyto anhydrous copper(II) sulfate ${\text{(CuSO}}_{\text{4}}\text{)}$ with amass of 0.483 g. Determine the value of x. [This numberis called the “number of waters of hydration” of copper(II)sulfate. It specifies the number of water molecules performula unit of ${\text{CuSO}}_{\text{4}}$ in the hydrated crystal.]