Essential Organic Chemistry, Global Edition
3rd Edition
ISBN: 9781292089034
Author: Paula Yurkanis Bruice
Publisher: PEARSON
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Chapter 20.2, Problem 3P
Interpretation Introduction
Interpretation:
Structure for an optically inactive fat that, when hydrolysed under acidic condition gives glycerol with one equivalent lauric acid and two equivalents of stearic acid has to be identified.
Concept Introduction:
Triglycerides are compounds in which the three
Triglycerides that are solids or semisolids at room temperature are fats and liquid triglycerides are oils.
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4. The ester you drew in Question #1 has a melting point range of 32-35 °C. The methyl ester of mono-unsaturated
palmitoleic acid (IUPAC name: hexadec-9enoic acid) has a considerably lower melting point range: -0.5-+0.5 °C.
a) Explain what it means for a fatty acid to the "mono-unsaturated."
b) Illustrate your explanation by drawing the structure of the methyl ester of octadec-11-enoic acid. (Be sure to draw
the geometric stereoisomer that is commonly found in nature.)
Please answer all subparts pertaining to question 5
Chapter 20 Solutions
Essential Organic Chemistry, Global Edition
Ch. 20.1 - Prob. 1PCh. 20.2 - Prob. 2PCh. 20.2 - Prob. 3PCh. 20.2 - Draw the structure of an optically active fat...Ch. 20.4 - Prob. 6PCh. 20.4 - Prob. 7PCh. 20.4 - The membrane phospholipids in deer have a higher...Ch. 20.4 - Prob. 9PCh. 20.6 - Prob. 10PCh. 20.6 - Prob. 11P
Ch. 20.6 - Prob. 12PCh. 20.7 - Propose a mechanism for the biosynthesis of...Ch. 20.7 - Prob. 14PCh. 20.8 - Draw the individual 1,2-hydride and 1,2-methyl...Ch. 20.9 - Prob. 16PCh. 20 - Prob. 17PCh. 20 - Prob. 18PCh. 20 - Cardiolipins are found in heart muscles. Draw the...Ch. 20 - Prob. 20PCh. 20 - 5-Androstene-3,17-dione is isomerized to...Ch. 20 - Prob. 22PCh. 20 - Prob. 23PCh. 20 - Prob. 24PCh. 20 - Eudesmol is a sesquiterpene found in eucalyptus....
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- 1.The reaction that is required in making soap is: ester hydrolysis hydration esterification hydrogenation 2. Micelles stay in the soap solution as colloid since: negative charges from polar heads repel each other positive charges from polar heads are attraced to each other positive charges from polar heads repel each other negative charges from polar heads are attracted to each other 3.The soap that would take longer to lather has: shorter chained fatty-acid salts saturated carbon atoms longer chained fatty-acid salts more potassium ionsarrow_forwardTrue or False a. Stearic acid is an unsaturated fatty acid.b. Human fat has more unsaturated fatty acids than plant fats.c. Soaps and detergents form micelles when added to water.d. Soap micelles form in water by aggregating the negatively charged carboxylategroups toward the inside and the lipophilic carbon chains toward the outside of themicelle.e. The forces that drive micelle and lipid bilayer formation are the same.f. There are several stereoisomers of cholesterol found in living systems.g. Aldosterone is an androgen.h. Vitamin D precursors have the cholesterol ring system.i. Vitamin E is required for blood clotting.j. Prostaglandins are involved with the inflammatory response.arrow_forward5. Draw the structure of a disaccharide that consists of two a-galactoses connected by an al-4 linkage.arrow_forward
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