\(H_2+\dfrac{1}{2}O_2-^{t^o}\rightarrow H_2O\)
\(n_{H_2}=\dfrac{4,47}{22,4}=0,2\left(mol\right)\)
\(n_{H_2O}=n_{H_2}=0,2\left(mol\right)\)
=> \(m_{H_2O}=0,2.18=3,6\left(g\right)\)
\(n_{O_2}=\dfrac{1}{2}n_{H_2}=0,1\left(mol\right)\)
=> \(V_{H_2}=0,1.22,4=2,24\left(l\right)\)
Chắc là 4,48 lít nhở?
nH2=4,48/22,4=0,2(mol)
a) PTHH: H2 + 1/2 O2 -to-> H2O
nH2O=nH2=0,2(mol)
=>mH2O=0,2.18=3,6(g)
=>m=3,6(g)
b) nO2=1/2. 0,2=0,1(mol)
V(O2,đktc)=1/2.22,4=2,24(l)
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