Record of Observations

Part A. Reducing Sugars

Sample A.: Cloudy red solution w/precipitate

Sample B.: Clear blue solution

Sample C.: Clear blue solution

Part B. Non-reducing Sugars

Sample D.: Cloudy red solution w/precipitate

Sample E.: Clear blue solution

Sample F.: Cloudy red solution w/precipitate

Questions & Answers

1. In part A, which sample(s) contained a reducing sugar? Sample A (5 pts)

2. In part B, which sample(s) contained a reducing sugar? Samples D & F (5 pts ea)

3. Prior to acid hydrolysis, which drink(s) contained a reducing sugar?

Regular soft drink (5 pts)

4. Name the sugar(s) likely to be present in the drink(s) you listed for Q3?

Fructose (high fructose corn syrup) (5 pts)

5. As a result of acid hydrolysis, which drink(s) contained a reducing sugar?

Koolaid-type drink (5 pts) [Note: Including regular soft drink too is okay.]

6. Name the sugar(s) likely to be present in the drink(s) you listed for Q5.

Sucrose (5 pts)

7. Did any drink fail to give a position reaction? If so, name it and explain why it did not and what sweetener may have been used.

Yes, diet soft drink. (2 pts)

No sugars present. Possibly contains aspartame or other non-sugar sweetener. (3 pts)