Ответ:
81.8%
Объяснение:
w(C3H8)=M(C)*3/M(C3H8)*100%=36/44*100=81.8%
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Ответ:
81.8%
Объяснение:
w(C3H8)=M(C)*3/M(C3H8)*100%=36/44*100=81.8%