a) \(CuO+H_2\underrightarrow{t^0}Cu+H_2O\)
b) \(n_{Cu}=\frac{12,8}{64}=0,2\left(mol\right)\)
Theo PTHH: \(n_{H_2}:n_{Cu}=1:1\)
\(\Rightarrow n_{H_2}=n_{Cu}=0,2\left(mol\right)\)
\(\Rightarrow V_{H_2\left(đktc\right)}=0,2.22,4=4,48\left(l\right)\)
c) Theo PTHH: \(n_{Cu}:n_{CuO}=1:1\)
\(\Rightarrow n_{CuO}=n_{Cu}=0,2\left(mol\right)\)
\(\Rightarrow m_{CuO}=0,2.80=16\left(g\right)\)
a) PTHH: H2 + CuO \(\underrightarrow{T^o}\) Cu + H2O
b) nCu = \(\frac{12,8}{64}=0,2\left(mol\right)\)
Theo PT: n\(H_2\) = nCu = 0,2(mol)
=> V\(H_2\) = 0,2.22,4 = 4,48(l)
c) Theo PT: nCuO = nCu = 0,2 (mol)
=> mCuO = 0,2.80 = 16(g)
CuO + H2 -to-> Cu + H2O
nCu= 0.2 mol
Từ PTHH:
nH2= 0.2 mol
VH2= 4.48l
nCuO= 0.2 mol
mCuO= 16g