HIdrocacbon chứ không phải hidrocacbonic nhé :)))
\(m_{KOH\left(tăng\right)}=m_{CO_2}=17.6\left(g\right)\)
\(\Rightarrow n_{CO_2}=\dfrac{17.6}{44}=0.4\left(mol\right)\)
\(m_{P_2O_5\left(tăng\right)}=9\left(g\right)\)
\(\Rightarrow n_{H_2O}=\dfrac{9}{18}=0.5\left(mol\right)\)
\(n_{H_2O}>n_{CO_2}\Rightarrow ankan\)
\(SốC:\)\(\dfrac{0.4}{0.1}=4\)
\(SốH:\dfrac{0.5\cdot2}{0.1}=10\)
\(CTPT:C_4H_{10}\)
\(CTCT:\)
\(CH_3-CH_2-CH_2-CH_3\)
\(CH_3-CH\left(CH_3\right)-CH_3\)