Đốt cháy hoàn toàn m gam chất béo X (chứa triglixerit của axit stearic,axit panmitic và các axit béo tự do đó). Sau phản ứng thu được 6,72 lít CO2 (đktc) và 5,22 gam nước. Xà phòng hoá m gam X (hiệu suất =90%) thì thu được khối lượng glixerol là         

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Một số câu hỏi khác có thể bạn quan tâm.

• Choose a word that has different stress pattern:

  visually                     impossible                      formally                    probably

• Choose a word that has different stress pattern:

  mountain                      popular                    media                      entertain

• Choose the best answer for the following sentence:

  The department store has been in business _____________ many years.
   

• Choose the best answer for the following sentence:

  He _____________ me to buy air ticket immediately or it would be too late.
   

• Choose the best answer for the following sentence:

  You really can't _____________ a thing that a woman says!
  
  

• Choose the best answer for the following sentence:

  Her parents were very worried _____________ she was out so late that night.
  
  

• Choose the best answer for the following sentence:

  This is the _____________ of the bicycle which was stolen.
   

• Choose the best answer for the following sentence:

  I lost too much money betting at the races last time, so you won't _____________ me to go again.
   

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

  Tom said he would pay me when he had enough money.
  
  

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

  It's ages since I last saw a good cowboy film.