C2H5OH +O2 - lên men giấm -> CH3COOH +H2O (1)
Vrượu=\(\dfrac{20.15}{100}=3\left(l\right)\)=3000(ml)
=> mrượu =3000/0,8=3750(g)
theo (1) :
1 mol C2H5OH --> 1 mol axit
=> 46g C2H5OH --> 60g axit
3750 g C2H5OH --> x g axit
=>x=\(\dfrac{60.3750}{46}\approx4891,3\left(g\right)\)
mà H=90% => mCH3COOH (tt) =\(\dfrac{4891,3}{100}.90=4402,17\left(g\right)\)
=> mdd CH3COOH=\(\dfrac{4402,17.100}{2}=220108,5\left(g\right)=220,1085\left(kg\right)\)