these are questions pertaining to an old soap and detergent lab i didnt do to well on that i would like to undertstand better if you can answer the questions id appreciate the help so i can do better on the next exam! :)

QUESTIONS: 1. What is the purpose of performing the test on water in the comparison studies? 2. Answer the following questions based on your observations of the properties of soaps and Aataronnt (if hoth soap and detergent have the same action say "both equal"). Soaps and Detergents 3. Assume that the lard is a triglyceride of stearic acid, palmitic acid, and oleic acid. (A) Write the structure of lard. (B) Write a balanced equation for its saponification with NaOH. (C) Underline one of the soap molecules formed. (D) Why is the soap molecule considered to be amphipatic? 4. Assume your soap is mostly sodium stearate, CH3(CH2)16COONa. Write equations to show (A) the effect of adding CaCl2. (B) the effect of adding HCl. 5. Using the diagram below to represent the amphipatic nature of soap, (A) label the lipophilic or hydrophobic part of the molecule. (B) label the lipophobic or hydrophilic part of the molecule. (C) Draw a diagram depicting the emulsification of an oil droplet by soap in H2O. Soap Oil drop After Emulsification