CuO+H2-to>Cu+H2O
0,1---------------0,1 mol
n CuO=\(\dfrac{8}{80}\)=0,1 mol
H=80%
=>m Cu=0,1.64.\(\dfrac{80}{100}\)=5,12g
CuO+H2\(CuO+H_2\underrightarrow{t^0}Cu+H_2O\)Cu+H2O
Theo PT: \(n_{H_{2\left(lt\right)}}\)=\(n_{CuO}\)=\(\dfrac{8}{80}\)=0,1(mol)
Vì hiệu suất đạt 80%
⇒\(V_{H_2}\)(thực)=\(\dfrac{0,1.22,4}{80\%}\)=2,8(l)