1. How can we prepare soap in the laboratory? 2. Explain why the soaps made by...
1. How can we prepare soap in the laboratory?
2. Explain why the soaps made by primitive method was likely to be very harsh.
Homework Answers
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1. How can we prepare soap in the laboratory? 2. Explain why the soaps made by...
A. How do the properties of soaps made from vegetable oils differ from soaps made from...
A. How do the properties of soaps made from vegetable oils differ from soaps made from animal fat? B. Why are the properties of soaps made from vegetable oils different from soaps made from animal fat. C. Why is ethanol needed to dissolve the fat, but not the soap
for number 5. my soaps ph is at 11 4. Tristearin and stearic acid are insoluble...
for number 5. my soaps ph is at 11
4. Tristearin and stearic acid are insoluble in water. However, sodium stearate (soap) is soluble. Why is there this difference in solubility? 5. Use of concentrated NaOH (lye or caustic soda) in soap preparations can produce a very basic product. A good soap tests between pH 7 and 9; pH 10 is rather harsh; a pH of 11 means something is wrong. How does your soap compare with these values? How...
lab report on the preparation of soap (Saponification) 1. Write the reaction for the saponification of...
lab report on the preparation of soap
(Saponification)
1. Write the reaction for the saponification of glyceryl tripalmitate with sodium 2. 3. 4. hydroxide. Why is the product of saponification called a salt? Why was ethanol added to the reaction mixture of fat and base? Do you think the solid soap that you made contains glycerol? Why or why not? Explain. 5. Describe the appearance of your soap. 6. Explain how soaps emulsify oils and fats. 7. Explain why soaps...
5 in the presence of acid, soaps will undergo the reaction shown below. Explain how this...
5 in the presence of acid, soaps will undergo the reaction shown below. Explain how this would affect the ability of soap to act as a cleaning agent if it is used in water that is acidic. 6 A friend lives in an area where the tap water is very hard due to high levels of calcium ion. She notices that a bath soap containing sodium palmitate leaves a heavy film of soap scum on her shower. The chemical reaction...
melpful questions to be answered in your Prelab before you enter the laboratory 1) write the...
melpful questions to be answered in your Prelab before you enter the laboratory 1) write the balanced equation and mechanism for today's reaction. Assume tristearin shortening. 2) There is a main difference between potassium and lithium salt soaps. What is it? 3) After 3 weeks, a student took their soap home without checking its pH. Why was this foolish? 4) CLR is a product which claim to remove calcium, lime and rust (CLR!). How does it work? 5) Explain how...
Explain how soap acts as a cleansing agent? 7. 8. Why doesn't soap work well under...
Explain how soap acts as a cleansing agent? 7. 8. Why doesn't soap work well under acidic conditions?
Did the solid soap you made contain excess base? Explain how you know.
Did the solid soap you made contain excess base? Explain how you know.
soap can be used to dissolve both polar and nonpolar substances well. Explain why.
soap can be used to dissolve both polar and nonpolar substances well. Explain why.
1. Why do the colours of a soap bubble floating in the air or the soap...
1. Why do the colours of a soap bubble floating in the air or the soap film on a child's plastic hoop change continually? 2. Explain why the headlights of a car are not able to form an interference pattern.
PROP2027: Preparation and Properties of a Soap - Bettelheim/Landsberg. 9e POST-LABORATORY QUESTIONS 1. Write the chemical...
PROP2027: Preparation and Properties of a Soap - Bettelheim/Landsberg. 9e POST-LABORATORY QUESTIONS 1. Write the chemical equation for the reaction between MgCl, and the soap you prepared. 2. How might a synthetic detergent be superior to a normal soap? boooooo6663UUUUUUU 3. Many operations in the chemical laboratory use "salting out in the procedure. What is the purpose of using this technique?
for number 5. my soaps ph is at 11
4. Tristearin and stearic acid are insoluble in water. However, sodium stearate (soap) is soluble. Why is there this difference in solubility? 5. Use of concentrated NaOH (lye or caustic soda) in soap preparations can produce a very basic product. A good soap tests between pH 7 and 9; pH 10 is rather harsh; a pH of 11 means something is wrong. How does your soap compare with these values? How...
lab report on the preparation of soap
(Saponification)
1. Write the reaction for the saponification of glyceryl tripalmitate with sodium 2. 3. 4. hydroxide. Why is the product of saponification called a salt? Why was ethanol added to the reaction mixture of fat and base? Do you think the solid soap that you made contains glycerol? Why or why not? Explain. 5. Describe the appearance of your soap. 6. Explain how soaps emulsify oils and fats. 7. Explain why soaps...
5 in the presence of acid, soaps will undergo the reaction shown below. Explain how this would affect the ability of soap to act as a cleaning agent if it is used in water that is acidic. 6 A friend lives in an area where the tap water is very hard due to high levels of calcium ion. She notices that a bath soap containing sodium palmitate leaves a heavy film of soap scum on her shower. The chemical reaction...
melpful questions to be answered in your Prelab before you enter the laboratory 1) write the balanced equation and mechanism for today's reaction. Assume tristearin shortening. 2) There is a main difference between potassium and lithium salt soaps. What is it? 3) After 3 weeks, a student took their soap home without checking its pH. Why was this foolish? 4) CLR is a product which claim to remove calcium, lime and rust (CLR!). How does it work? 5) Explain how...
Explain how soap acts as a cleansing agent? 7. 8. Why doesn't soap work well under acidic conditions?
1. Why do the colours of a soap bubble floating in the air or the soap film on a child's plastic hoop change continually? 2. Explain why the headlights of a car are not able to form an interference pattern.
PROP2027: Preparation and Properties of a Soap - Bettelheim/Landsberg. 9e POST-LABORATORY QUESTIONS 1. Write the chemical equation for the reaction between MgCl, and the soap you prepared. 2. How might a synthetic detergent be superior to a normal soap? boooooo6663UUUUUUU 3. Many operations in the chemical laboratory use "salting out in the procedure. What is the purpose of using this technique?
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