UKN Practice exam 4

UKN Practice exam 4 - Practice Final Questions 1 Read the...

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Practice Final Questions 1. Read the following procedure (that was copied from your lab manual) and complete the following questions: a. What are the products of the reaction? b. What is the drying tube filled with? c. Why do we need to use a drying tube in this reaction? 1.________________________________________________________________________ 2.________________________________________________________________________ d. This reaction is reversible/non-reversible (circle one) e. At the end of the procedure, concentrated ammonium hydroxide (NH 3 in water) is added to the solution in the beaker. What reaction will take place? Write the reaction product including the reaction mechanism. 2. (20 pt.) Complete the arrow pushing and missing charges (if needed) for this step in the iodoform reaction: R O I I H OH R CI 3 O 3. Match the structure of the compounds below with the corresponding carbonyl frequencies 1599 cm -1 , 1675 cm -1 , 1717 cm -1 , 1735 cm -1 , 1753 cm -1 , 1807 cm -1 OH O Cl O OH O OH O OH O Cl Cl Cl Cl Cl Cl ONa O Cl Cl Cl I. Preparing derivatives of carboxylic acids : (must work in hood) a) Preparation of an amide .
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