1. Describe the effect of CaCl2 on the solutions (soap). Write an equation for the formation of any precipitate.
2. Describe the effect of FeCl3 on the solutions (soap). Write an equation for the formation of any precipitate.
3. Describe the behavior of the soap at pH4. Write an equation for the changes that occur at pH 4.
R2 R1 O -CH 2 CSO H -C-O 3, NaOH O -CH R3 Fat (a glyceride) R1, R2 and R3 different fatty acid chains H2O R1 O Na HO-CH2 H -C-OH C R2 O Na HO-CH C glycerol R3 O Na Fatty acid salts (soap)