Đốt cháy hoàn toàn m gam hỗn hợp X gồm 2 este đồng phân cần dùng 4,704 lít khí O2, thu được 4,032 lít khí CO2 và 3,24 gam H2O. Nếu cho m gam X tác dụng hết với 110 ml dung dịch KOH 1M, cô cạn dung dịch sau phản ứng thì thu được 7,98 gam chất rắn khan, trong đó có a mol muối Y và b mol muối Z(MY>MZ). Các thể tích khí đều ở điều kiện chuẩn. Tỉ lệ a:b là         

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Một số câu hỏi khác có thể bạn quan tâm.

• Choose a word that has different stress pattern:

  communal                     informal                      impersonal                    eternal

• Find a mistake in the four underlined parts of the sentence and correct it:

  When he was at secondary school, he won first price for good behavior.

• Find a mistake in the four underlined parts of the sentence and correct it:

  My teacher is used to check students’ old lessons.

• Find a mistake in the four underlined parts of the sentence and correct it:

  They have left their house empty since years.

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

  Due to the government's policy, some farming areas have been abandoned.
  
  

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

  Can somebody show me how to change the film in this camera?
  
  

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

  If you need help, please stay on the line until an operator answers.
  
  

• Choose a word that has different stress pattern:

  biodiversity                  personality                  familiarity                  opportunity

• Choose a word that has different stress pattern:

  entrapment                   encouragement                  ensure                   engineer

• Find a mistake in the four underlined parts of the sentence and correct it:

  Satellite photos provide a wide range of information, included water temperature.