\(n_{C_6H_{12}O_6}=\frac{72}{180}=0,4\left(mol\right)\)
\(PTHH:C_6H_{12}O_6\xrightarrow[30-35^oC]{men-r\text{ượu}}2C_2H_5OH+2CO_2\)
`(mol)`_____`0,4`_____________`0,8`________`0,8`__
\(a.m_{C_2H_5OH}=0,8.46=36,8\left(g\right)\)
`b.` \(n_{NaOH}=0,5.1=0,5\left(mol\right)\)
\(PTHH:2NaOH+CO_2\rightarrow Na_2CO_3+H_2O\)
`(mol)`______`0,5`_____`0,25`____________
\(H=\frac{0,25}{0,8}.100\%=31,25\left(\%\right)\)
\(c.V_{C_2H_5OH}=\frac{36,8}{0,8}=46\left(ml\right)\)
(Độ rượu) \(D_r=\frac{V_{C_2H_5OH}}{V_{hh}}.100\Rightarrow V_{hh}=\frac{46.100}{40}=115\left(ml\right)\)