Từ m gam tinh bột điều chế đư­ợc 575 ml ancol etylic 100 (khối l­ượng riêng của ancol etylic nguyên chất là 0,8 gam/ml) với hiệu suất cả quá trình là 75%. Giá trị của m là:  

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following question:

  There are several places where residents face the threat of _______every day.           

• Cho hàm số  có đồ thị là (C). Tìm tất cả giá trị của m để đồ thị (C) có hai điểm cực trị nằm về hai phía của trục hoành.           

• Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following question:

  He is very worried_____ his new job because he is not quite prepared___ working.         

• Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions:

  Why don't you wear that blue dress of yours? It _______ you.  

• Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions:x

  Although he supports the Council, he does not take an active _____ in politics.         

• Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions:

  Although he claims to have left his job voluntarily, he was actually______ for misconduct.  

• Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions:

  Many people are trying their best to study and work in the hope that they will_______fame and fortune in the near future.         

• Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions:

  I could sit here and argue with you till_______come home, but it wouldn’t solve anything.         

• Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions:

  _______ angles of any triangle always add up to 180 degrees.         

• Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions:

  My father is in_______ of 30 engineers and 80 workers.