Homework Answers
Soaps or detergents are chemical containing oil and salts. These are chemically synthesized. The soaps are amphoteric as they have both hyfrophilic and hydrophobic ends. The hydrophobic ends attach to nonpolar grease and hydrophilic ends attach to polar water molecules. Since, grease is non-polar it cannot mix with water. Thus, pure water alone cannot remove grease. When grease interacts with soap water it is mixed with soap water forming micelles. The micelles bring oily or greasy substance into the center so that the micelles can be dissolved in water. Rinsing with water, the grease is removed along with soap and gets cleaned.
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5) Read 13.8 Colloids and explain why a soap molecule is able to clean grease but...
what makes a soap molecule able to break up oil into little pieces? A. Emulsification by ion repulsion B. Soap bubbles c...
what makes a soap molecule able to break up oil into little pieces? A. Emulsification by ion repulsion B. Soap bubbles carry the oil away C. it is a catalyst helping the oil to disintegrate into an emulsion D. Soap lowers the surface tension of the water
saturated soap molecule with a total of 14 carbons 1 in the video and the procedure...
saturated soap molecule with a total of 14 carbons
1 in the video and the procedure described in Exercise 8), the reaction mixture was heated in a hot water bath. In the lab, we often heat reaction mixtures. In no more than three sentences, explain why we heat reaction mixtures. 2. Using condensed structures, show: a) A saturated soap molecule with a total of 14 carbons. b) An unsaturated soap molecule with a total of 16 carbons. 3. Which of...
DISCUSSION 1. Using what you learned about the structures of soap and micelles, explain what would...
DISCUSSION 1. Using what you learned about the structures of soap and micelles, explain what would map if soap molecules were mixed into a sample of pure vegetable oil. You may provide an illustration to help support your explanation. 2. Using what you've learned previously about light's interaction with matter, and what you've observed with the Tyndall effect, explain why the sky appears blue. (Hint: read the introduction to this experiment.)
4. Is this molecule aromatic? Explain why or why not. For each molecule below, predict whether...
4. Is this molecule aromatic? Explain why or why not. For each molecule below, predict whether the molecule would be expected to show aromatic character or not. Explain your answer in each case. 5. (f 6. Is this molecule aromatic, antiaromatic, or nonaromatic? Explain.
can you answerthe lab questions 1-5? 1. Explain why methanol and sodium carbonate were both able...
can
you answerthe lab questions 1-5?
1. Explain why methanol and sodium carbonate were both able to dissolve in water, but only sodium carbonate was able to conduct electricity in solution. (3 pts) 2. Look up the chemical structures of methane and methanol. Based on their structures, which of the two do you expect to be water soluble? Explain your answer. (4 pts) 3. What are the main structural differences and similarities between methanol and 1-decanol. Explain the observed difference...
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...
the correct answer is molecule 2. please just explain with A LOT of detail why please....
the correct answer is molecule 2. please just explain with A
LOT of detail why please. why is it not 3,4 and 5?
Which of the following molecules will have the second strongest conjugate base? Molecule 1: Molecule 2: Best Avail Molecule 3: Awar Molecule 4: Molecule 5: No att Attad delete closed (a) Molecule 5 (b) Molecule 3 • (c) Molecule 1 x (d) Molecule 4 (e) Molecule 2 x 0% This question is complete and cannot be answered...
5. Why are simple stains able to "stick” to bacteria? Explain the chemical properties of the...
5. Why are simple stains able to "stick” to bacteria? Explain the chemical properties of the stain and bacteria surface. 3-Preparation of Bacterial Smears and Simple Stains Introduction Microbial cultures are handled using aseptic technique. Aseptie technique is a set of procedures used to minimize contamination of materials by microorganisms from the environment, and to minimize the spread of cultures around the laboratory. In this experiment, you will be using an inoculating loop to transfer bacteria from a culture tube...
Study Guide Questions 1. Explain the relationship between the kinetic energy of molecules or atoms in...
Study Guide Questions 1. Explain the relationship between the kinetic energy of molecules or atoms in a system, and temperature, 2. Explain what it means when someone says, "Water is a polar molecule." (Bet you hear that all the time!) 3. What are hydrogen bonds? 4. Why is it difficult to heat up (or cool down) water? 5. Why is water such a good solvent? Are there any substances water cannot dissolve? Why or why not? 6. What is surface...
please help with these chemistry problems 2. (5 points) Why does this reaction occur via a...
please help with these chemistry problems
2. (5 points) Why does this reaction occur via a Si1 pathway and not via a Si2 pathway? 3. (5 points) In general are SN1 reactions stereospecific? Why or why not? 2 5.(5 points) Why do carbon substituents stabilize a carbocation and destabilize a carbanion? 6. (5 points) The mass spec of your product has a base peak at 77 draw what this fragment looks like. What would explain the peak at 79. (you...
saturated soap molecule with a total of 14 carbons
1 in the video and the procedure described in Exercise 8), the reaction mixture was heated in a hot water bath. In the lab, we often heat reaction mixtures. In no more than three sentences, explain why we heat reaction mixtures. 2. Using condensed structures, show: a) A saturated soap molecule with a total of 14 carbons. b) An unsaturated soap molecule with a total of 16 carbons. 3. Which of...
DISCUSSION 1. Using what you learned about the structures of soap and micelles, explain what would map if soap molecules were mixed into a sample of pure vegetable oil. You may provide an illustration to help support your explanation. 2. Using what you've learned previously about light's interaction with matter, and what you've observed with the Tyndall effect, explain why the sky appears blue. (Hint: read the introduction to this experiment.)
4. Is this molecule aromatic? Explain why or why not. For each molecule below, predict whether the molecule would be expected to show aromatic character or not. Explain your answer in each case. 5. (f 6. Is this molecule aromatic, antiaromatic, or nonaromatic? Explain.
can
you answerthe lab questions 1-5?
1. Explain why methanol and sodium carbonate were both able to dissolve in water, but only sodium carbonate was able to conduct electricity in solution. (3 pts) 2. Look up the chemical structures of methane and methanol. Based on their structures, which of the two do you expect to be water soluble? Explain your answer. (4 pts) 3. What are the main structural differences and similarities between methanol and 1-decanol. Explain the observed difference...
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...
the correct answer is molecule 2. please just explain with A
LOT of detail why please. why is it not 3,4 and 5?
Which of the following molecules will have the second strongest conjugate base? Molecule 1: Molecule 2: Best Avail Molecule 3: Awar Molecule 4: Molecule 5: No att Attad delete closed (a) Molecule 5 (b) Molecule 3 • (c) Molecule 1 x (d) Molecule 4 (e) Molecule 2 x 0% This question is complete and cannot be answered...
5. Why are simple stains able to "stick” to bacteria? Explain the chemical properties of the stain and bacteria surface. 3-Preparation of Bacterial Smears and Simple Stains Introduction Microbial cultures are handled using aseptic technique. Aseptie technique is a set of procedures used to minimize contamination of materials by microorganisms from the environment, and to minimize the spread of cultures around the laboratory. In this experiment, you will be using an inoculating loop to transfer bacteria from a culture tube...
Study Guide Questions 1. Explain the relationship between the kinetic energy of molecules or atoms in a system, and temperature, 2. Explain what it means when someone says, "Water is a polar molecule." (Bet you hear that all the time!) 3. What are hydrogen bonds? 4. Why is it difficult to heat up (or cool down) water? 5. Why is water such a good solvent? Are there any substances water cannot dissolve? Why or why not? 6. What is surface...
please help with these chemistry problems
2. (5 points) Why does this reaction occur via a Si1 pathway and not via a Si2 pathway? 3. (5 points) In general are SN1 reactions stereospecific? Why or why not? 2 5.(5 points) Why do carbon substituents stabilize a carbocation and destabilize a carbanion? 6. (5 points) The mass spec of your product has a base peak at 77 draw what this fragment looks like. What would explain the peak at 79. (you...
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