Răspuns:
Explicație:
8.
5 CuSO4=====> 5 moli CuSO4
m= n . M
M= 64 + 32 + 4.16= 160------> 160g/moli
m= 5moli .160g/moli= 800g CuSO4
2CuSO4======> 2moli CuSO4
M= 160g/moli
m= 2moli .160g/moli= 320 g CuSO4
