Используем формулу
w(CH3OH)= m(CH3OH)/(m(CH3OH)+m(H2O))=
=45/(45+135)=45/180=0.25 или 25%. Удачи!
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Verified answer
Используем формулу
w(CH3OH)= m(CH3OH)/(m(CH3OH)+m(H2O))=
=45/(45+135)=45/180=0.25 или 25%. Удачи!