a) C2H5OH + O2 --men giấm--> CH3COOH + H2O
b) \(n_{O_2}=\dfrac{6,72}{22,4}=0,3\left(mol\right)\)
PTHH: C2H5OH + O2 --men giấm--> CH3COOH + H2O
0,3<----0,3------------------>0,3
=> \(m_{C_2H_5OH}=0,3.46=13,8\left(g\right)\)
=> \(V_{C_2H_5OH}=\dfrac{13,8}{0,8}=17,25\left(ml\right)\)
=> \(Độ.rượu=\dfrac{17,25}{150}.100=11,5^o\)
c) \(m_{CH_3COOH}=0,3.60=18\left(g\right)\)