Data Analysis Questions for Extraction and Recrystallization

A. Melting Point

1. Crude Base and Neutral

a. What is the crude melting point?

b. What does the melting point data tell you?

c. Were there any errors? If so, what caused them?

2. Recrystallized Base and Neutral

a. What is the recrystallized melting point?

b. What does the melting point data tell you?

c. What are the major differences from the crude data? Why?

d. Were there any errors? If so, what caused them?

B. Percent Recovery

1. Crude Base and Neutral

a. What is the recovery?

b. What does the recovery tell you?

c. Was your recovery good or bad?

d. Explain.

2. Recrystallized Base and Neutral

a. What is the recovery?

b. What does the recovery tell you?

c. What is the major difference from the crude data? Why?

d. Was your recovery good or bad?

e. Explain

C. Identity

1. What were the identities you determined your unknowns to be?

2. Did you identify the unknowns correctly?

3. Why or why not?