# What is the gram formula mass of CuSO_4•5H_2O?

Well, the atomic mass of copper is $63.55 \cdot g \cdot m o {l}^{-} 1$.........
.........And the atomic mass of sulfur is $32.06 \cdot g \cdot m o {l}^{-} 1$, of oxygen, $15.999 \cdot g \cdot m o {l}^{-} 1$, and of hydrogen $1.00794 \cdot g \cdot m o {l}^{-} 1$.