SAPONIFICATION OF FATTY ACIDS
Experiment/Data
Briefly Summarize the procedure
Activities 1 and 2
Data Table
Prepared soap sample Household soap sample
pH of sample 6 (mostly yellow-orange) 8 (green/somewhat turquoise)
Initial observation of foam layer 1/3 roughly is made of white foam present Mostly white foam present
Oil test observation Slight amount of white foam present Lots of white foam about half of test tube
Hard water test observation Small amount of frothy white foam present Less white foam but still about 1/3 of test tube foam present
Observations:
Photos
Photo 1
Activity 2, step 8.
Photo 2
Activity 2, step 10.
Photo 3
Insert the photo of the foam layer produced by Activity 2, step 16.
Calculations:
Conclusion:
Post Lab Questions:
Does your prepared soap contain excess sodium hydroxide? How can you tell?
Does your household soap sample contain excess sodium hydroxide? How can you tell?
