Answer Happy

RESULTS and POST-LABORATORY QUESTIONS: 1. Describe the appearance of your soap. 2. Emulsifying Action: Observation: Oil+ water quickly separated Observation: Oil + soap solution took a bit longer Explain the difference in results: to separate from one another 3. Properties of Soap and Detergents Substance pH of Effect of adding salts Tap water solution Cael FeCl2 MgCl2 Soap Pink orange precipitate Precipitate light Pink Detergent 8 444 // precipitale precipitate The meal ions Ca, Fe, Mg all contribute to the formation of hard water. What differences did you observe when the metal ions Ca2, Fe3 and Mg2 were added to a soap or detergent. Do you think that a soap or detergent would make a better cleansing agent in hard water? Explain. How does the pH of the soap solution that you prepared compare with those of the commercial detergent? Which of these products would have the harshest effect on skin? Explain. 4. What are the two main disadvantages of soaps versus detergent?