Question

calculati masa de sulfat de cupru ,exprimata in kilograme , necesara pentru obtinerea a 3,2 kg de cupru, la un randament al reactiei de 80%​

Answer 1

Salut! :)

..x kg.....3,2 kg........

2CuO -> 2Cu + O2

160 kg...128 kg......

x = ( 160 kg × 3,2 kg )/128 kg = 4 kg CuO

...y kg.........4 kg............

CuSO4 -> CuO + SO3

.160 kg.....80 kg..........

y = ( 160 kg × 4 kg)/80 kg = 8 kg CuSO4

r = mp/mt × 100

80/100 = mp/8 kg

mp = ( 80 × 8 kg )/100 = 6,4 kg CuSO4