Data Analysis Questions for Multistep Azo Violet

Day 1: Synthesis of Acetanilide

A. Percent Yield

a. What is the percent yield?

b. Why did you get these results (ie why did you lose product)?

c. Is there something you could have done to improve your yield?

i. If so, why?

ii. If not, why?

B. Melting Point

a. What was your percent yield?

b. Is this good or bad?

c. Why?

d. Were there any errors observed?

e. What caused these errors?

f. Why do the errors give you the results in the experiment?

C. IR

a. IR functional group region analysis

i. What peaks are present that should be present?

ii. What peaks are absent that should be absent?

iii. Are there any peaks present or absent that should not be?

iv. What conclusion can you draw about the functional group region?

b. IR fingerprint region analysis

i. What peaks are present that should be present?

ii. What peaks are absent that should be absent?

iii. Are there any peaks present or absent that should not be?

iv. What conclusion can you draw about the fingerprint region?

c. IR final analysis

i. Does the IR support the synthesis of acetanilide?

ii. Why or why not?

Day 2: Synthesis of p-Nitroacetanilide

A. Percent Yield

a. What is the percent yield?

b. Why did you get these results (ie why did you lose product)?

c. Is there something you could have done to improve your yield?

i. If so, why?

ii. If not, why?

B. Melting Point

a. What was your percent yield?

b. Is this good or bad?

c. Why?

d. Were there any errors observed?

e. What caused these errors?

f. Why do the errors give you the results in the experiment?

Day 3: Synthesis of p-Nitroaniline

A. Percent Yield

a. What is the percent yield?

b. Why did you get these results (ie why did you lose product)?

c. Is there something you could have done to improve your yield?

i. If so, why?

ii. If not, why?

B. Melting Point

a. What was your percent yield?

b. Is this good or bad?

c. Why?

d. Were there any errors observed?

e. What caused these errors?

f. Why do the errors give you the results in the experiment?

Day 4: Synthesis of Azo Violet

A. Dyeing Test

a. Did your product dye cotton orange?

b. Was there anything that wasn’t exactly correct (ie very light orange)?

c. Is there something you could have done to improve your result?

i. If so, why?

ii. If not, why?

B. pH Test

a. Was your product orange in acidic solution?

b. Was your product purple in basic solution?

c. Was there anything that wasn’t exactly correct?

d. Were there any errors observed?

e. What caused these errors?

f. Why do these errors give you the results in the experiment?