Câu 1:
PTHH:
a) CH4+Cl2→CH3Cl+HCl
b) C2H4+Br2→C2H4Br2
c) Zn+2CH3COOH→(CH3COO)2Zn+H2
d) C12H22O11+H2O→C6H12O6+C6H12O6
Câu 2:
nC2H4=$\frac{22,4}{22,4}$=1(mol)
PTHH: C2H4+H2O→C2H5OH
1 1
=>mC2H5OH lí thuyết=1.46=46(g)
=>%H=$\frac{13,8.100}{46}$=30%
Câu 3:
PTHH: CnH2n+1COOH+NaOH→CnH2n+1COONa+H2O
0,2 0,2
=>M(CnH2n+1COOH)=$\frac{12}{0,2}$=60(g/mol)
=>12n+2n+1+45=60
=>n=1
vậy CTPT của axit là CH3COOH
CTCT: CH3-COOH
