Khi đun nóng 25,8 gam hỗn hợp gồm ancol etylic và axit axetic có H2SO4 đặc làm xúc tác thu được 14.08 gam este. Nếu đốt cháy hoàn toàn hỗn hợp ban đầu đó thu được 23,4 ml nước. Hiệu suất của phản ứng este hóa là         

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Một số câu hỏi khác có thể bạn quan tâm.

• Choose one sentence that has the same meaning as the root one:

  The football coach lost his temper because the best player on the team missed the match.
  
  

• Choose one sentence that has the same meaning as the root one:

  Whatever subjects you choose makes no difference to me.
   

• Choose one sentence that has the same meaning as the root one:

  People have plenty of leisure time.

• Choose the word that has the underlined part pronounced differently from the rest: 

  pursuit               suitable             recruit                building

• Choose the word that has the underlined part pronounced differently from the rest: 

  resign              research              resemble               resist

• Choose the word that has the underlined part pronounced differently from the rest: 

  chimney             child             line            sign

• Choose the word that has the underlined part pronounced differently from the rest: 

  architect                 orchard                  school               chemical

• Choose the word that has the underlined part pronounced differently from the rest: 

  mine                 right                 live                   child

• Choose the word that has the underlined part pronounced differently from the rest: 

  some            come             love               tombs

• Choose one sentence that has the same meaning as the root one:

  It’s possible that the teacher didn’t understand what I meant.