I
mCu impur = 1600kg
p = 80%
mH2SO4 = ?
mCuSO4 = ?
mgaz = ?, Vgaz = ?
II
p=mp*100/mimp => mp = p*mimp/100 = 80*1600/100 = 1280kg Cu pur
III
Cu + 2H2SO4 => CuSO4 + SO2 + 2H2O
Reactanti: Cu si H2SO4
Produsi de reactie: CuSO4, SO2 (se degaja), H2O
IV
MCu = 64
MH2SO4 = 98
MCuSO4 = 160
MSO2 = 64
MH2O = 18
V
1280kg.....x................y..............z
Cu + 2H2SO4 => CuSO4 + SO2 + 2H2O
64kg........2*98kg......160kg......64kg
x = 1280*2*98/64 = 3920kg H2SO4 => mH2SO4 = 3920kg
y = 1280*160/64 = 3200kg CuSO4 => mCuSO4 = 3200kg
z = 1280*64/64 = 1280kg SO2 => mgaz = 1280kg SO2
nSO2 = m/M = 1280000/64 = 20000 moli SO2
Vgaz = nSO2*Vm = 20000*22,4 = 448000 L = 448 kL
