This week in lab we made a lotion, which of the following was thickening the aqueous phase?   A. Xanthan Gum   B. Glycerin   C. Cetyl Palmitate   D. Cetyl Alcohol

Q: you use hand soap (which helps to form micelles). You notice that after washing your hands are no…

A: Soap has cleaning properties . As soap has both polar and non-polar parts.

Q: 23. A researcher wanted to use myoglobin as a substitute for hemoglobin to carry oxygen in a human…

A: We from the overall observation of the graph we can say the myoglobin curve is hyperbolic and the…

Q: Which of the following is NOT characteristic of a quality restorative wax? a. The ability to…

A: Restorative wax is a type of microcrystalline wax polish that is utilized in museum conservation and…

Q: Briefly explain the difference in solubility of coconut oil in water and chloroform.

A: Substances having same nature are soluble . Organic compound  is soluble in organic solvents…

Q: Your supervisor asks to make 300 mL of a 1.0% (w/v) starch solution using a 5% (w/v) stock solution.…

A:

Q: You are given a protein solution with a concentration of 0.15 mg/ml. Suppose that we want to prepare…

A:

Q: Which method would help Oliver to dissolve sugar in his tea faster? • letting the tea cool down…

A: Given process, Dissolving of sugar in tea

Q: 1. One common chemical contaminant that is removed from water during water treatment. How is it…

A:

Q: 32. Glycolipids are a type of Oa. wax b. sphingolipid C. phospholipid od. nonsaponifiable

A: Glycolipids: Glycolipids are lipids with a carbohydrate attached by a glycosidic bond. Glycolipids…

Q: Why soaps should be applied on the wasp's sting?

A: When a wasp stings a person, it injects an alkaline solution into the skin.This leads to severe…

Q: Here are several (hypothetical) values of the % saturated fatty acyl chains in samples of…

A: A multiple choice question based on the melting point of fatty acids, which is to be accomplished.

Q: Describe the differences between flocculated and deflocculated suspensions.

A:

Q: Essential oils have been used in cough medicines for the treatment of bronchitis for many years. The…

A: Essential oils have wide varieties of applications in treating infections and used as fragrance…

Q: A 250 ml solution containing 21 4 g of a polymer in toluene had an osmotic pressure of 0 055 atm at…

A: Given: Volume of solution = 250 mL = 0.250 L Mass of polymer = 21.4 g. Osmotic pressure = 0.055 atm…

Q: 1. Pour Observe the hydrogen peroxide. (Warning: Hydrogen peroxide is corrosive. Avoid contact with…

A: 1. When yeast was added to hydrogen peroxide, a chemical in the yeast causes a reaction in which the…

Q: Compare the structure of the emulsifying agent to that of a soap. How are they similar?

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Q: 7. Protein Gel Running Buffer is made and kept at 12X concentration for storage. You will need 0.55…

A: During dilution the number of moles remain same. Therefore number of moles of concentrated solution…

Q: Which solution is isotonic to a red blood cell?     A. 10% glucose     B. 2% glucose     C. 0.5%…

A: Isotonic solutions: Two solutions having same osmotic pressure are known as isotonic solutions.If…

Q: Explain how soaps and detergents are able to clean spills and stains.

A: Soap is a sodium salt oh higher fatty acids and represented as RCOONa. When it dissolved in water it…

Q: Arterial embalming may  a. arrest the cause of putrefaction b. increase the possibility of…

A: Answer is a option .

Q: Suppose you have a mixture of water and your 2-bromo-2-methylbutane product in a separatory funnel.…

A: Density of 2-bromo-2-methylbutane is more than water.

Q: 5. Sodium acetate and sodium propionate are poor soaps. Why?

A: Sodium acetate and sodium propionate are poor soaps. Explanation and reason given below.

Q: 5. Based on your knowledge of starch, do you predict that starch will diffuse through the tubing?…

A: The rate of diffusion may be influenced by density of media, concentration gradient, temperature,…

Q: 1. What is an antipyretic? 2. What is an analgesic? 3. What is the "active ingredient" in aspirin?…

A: 1 ) An antipyretic is a that reduces fever. Antipyretics cause the hypothalamus to override a…

Q: 03. Urine contains urea. The urea used for fertilizers is synthesized in the laboratory. Which of…

A: Three multiple choice questions based on general chemistry, which are to be accomplished.

Micelles and Biological Membrane

Micelles are the type of lipid molecules that organize themselves in spherical shape in aqueous solutions. The production of the micelle is a reply to the amphipathic behavior of fatty acids. It means that they consist of both hydrophobic regions and hydrophilic regions. In micelles, polar head groups (hydrophilic groups) produce an outer layer associated with water whereas nonpolar tails (hydrophobic groups) are organized in the interior.