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Quiz

CHEM XL-14A Quiz 4Exam


Department
Chemistry and Biochemistry
Course Code
CHEM 14A
Professor
All
Study Guide
Quiz

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Remember, if you're not part of the solution, you're part of the precipitate!
NAME:____ _________________________
TA: Robert
Section: 1E
Quiz #4
1. Draw the product of today’s experiment (1,2,3,4-tetraphenyl-1,3-cyclopentadieone).
(2pts)
2. Provide the major product: (4pts)
3. What is wrong with the following TLC plates? (6pts)
4. Given the following data for solubility of crude product in water:
Temperature Solubility (g/100ml)
0oC 3.0
20oC 10.0
40oC 22.0
60oC 44.0
90oC 120.0
a. How much water would be required to dissolve 60.0 g of crude product at
90oC? (2pts)
b. How many grams of pure product would be recovered if the solution is
cooled to 0oC afterwards? (2pts)
5. Given the molar coefficient of a given compound is 2700 L*mol-1*cm-1, what is a
suggested concentration for this compound to do a UV-VIS measurement? (4pts)
O
H
O
1. NaOEt
2. Heat
+
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