\(n_{Cu}=0,125\left(mol\right);n_{NaNO_3}=0,15;n_{H_2SO_4}=0,15\left(mol\right)\)
PT ion: 3Cu + 2NO3- + 8H+ → 3Cu2+ + 2NO + 4H2O
BĐ: 0,125.........0,15..........0,3
PU : 0,1125......0,075..........0,3...........0,1125........0,075..........0,15
Dư: 0,0125.......0,075...........0
=> \(V_{NO}=0,075.22,4=1,68\left(l\right)\)
Muối tạo thành : Cu2+, SO42-, Na+, NO3- dư
=> \(m_{muối}=m_{Cu^{2+}}+m_{SO_{\text{4}}^{2-}}+m_{Na^+}+m_{NO_3^-\left(dư\right)}=0,1125.64+0,15.96+0,15.23+0,075.62=29,7\left(g\right)\)