Name:

Section:

1. The experiment.
2. The appropriate or assigned sections of your textbook.

1. A small sample of an unknown amino acid suspends in (i.e., has the same density as) a solvent made by mixing 0.88 mL of dichloromethane with 0.12 mL of 1,2-dichloroethane. What is the probable identity of the amino acid?
2. 0.2132 g of an unknown amino acid is weighed. Small portions of the sample are added to 0.50 mL of water, with stirring, until no more amino acid dissolves. The sample is then reweighed at 0.1849 g. What is the solubility of the amino acid in water in units of grams per mL?