Cp = 10%
mr = 200g
[tex]Cp=\frac{ms}{mr}*100[/tex]%, po przekształceniu [tex]ms=\frac{Cp*mr}{100}[/tex]
ms = (10% * 200g) / 100% = 20g CuSO₄
M(CuSO₄) = 160 g/mol
M(CuSO₄ · 5H₂O) = 250 g/mol
160g CuSO₄ - 250g CuSO₄ · 5H₂O
20 g - x
x = (20g * 250g) / 160 g = 31,25g CuSO₄ · 5H₂O