Pre-Lab 4 Quiz: Lab 5- Preparation of Benzilic acid  from Benzil

Name: _________________    Date:_______________

 

1.      Write the steps involved in the mechanism? ( 10 pts).

 

 

 

 

 

 

 

 

2.      What is the rate determining step? (10 pts)

 

 

 

 

 

3.      Identify the NMR chemical shift values that are appropriate for benzilic acid protons in the sturcture (10 pts)

 

 

 

 

 

 

  

 

    

4.      How many moles are in 2.3  g of benzil? (10pts)

     

 

 

 

Ans:_____________

 

5.      What is the theoretical yield of  benzilic acid starting with 2.3  g of benzil? (10 pts)

 

 

 

 

 

 

  Ans: __________________