a) CuO + H2 --to--> Cu + H2O
b) \(n_{CuO}=\dfrac{8}{80}=0,1\left(mol\right)\)
PTHH: CuO + H2 --to--> Cu + H2O
0,1-->0,1--------->0,1
=> mCu = 0,1.64 = 6,4 (g)
c) VH2 = 0,1.22,4 = 2,24 (l)
a, PT: \(CuO+H_2\underrightarrow{t^o}Cu+H_2O\)
b, Ta có: \(n_{CuO}=\dfrac{8}{80}=0,1\left(mol\right)\)
Theo PT: \(n_{Cu}=n_{CuO}=0,1\left(mol\right)\)
\(\Rightarrow m_{Cu}=0,1.64=6,4\left(g\right)\)
c, Theo PT: \(n_{H_2}=n_{CuO}=0,1\left(mol\right)\)
\(\Rightarrow V_{H_2}=0,1.22,4=2,24\left(l\right)\)
Bạn tham khảo nhé!
a)CuO + H2 -to--> Cu + H2O
n CuO = 8:80=0,1(MOL)
b) theo pthh, nCu =nCuO=0,1(mol)
=> mCu = n.M= 0,1.64=6,4(g)
theo pt , nH2 =nCu = 0,1 (mol)
=> VH2= n.22,4=0,1:22,4=2,24(l)