Mcristalohidrat = 250g/mol
250g cristalohidrat.............160g CuSO₄.................90g H₂O
500g...................................320g............................180g
md final = 320+320 = 640g CuSO₄
ms final = 180+8780+640 = 9600g = 9,6kg
m solvent(H₂O) = 180+8780 = 8,96kg
C = md final/ms final *100 = 0,64/9,6*100 = 6,66%
A- fals , B-fals , C- fals , D- fals , E - fals