PTHH: \(C_2H_6O+3O_2\underrightarrow{t^o}2CO_2+3H_2O\)
a) Ta có: \(n_{CO_2}=\frac{4,48}{22,4}=0,2\left(mol\right)\)
\(\Rightarrow n_{C_2H_6O}=0,1mol\) \(\Rightarrow V_{C_2H_6O}=0,1\cdot22,4=2,24\left(l\right)\)
b) Theo PTHH: \(n_{H_2O}=3n_{C_2H_6O}=0,3mol\)
\(\Rightarrow m_{H_2O}=0,3\cdot18=5,4\left(g\right)\)