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Concept explainers
(a)
Interpretation:
General structure for fatty acids, soaps, waxes, and triacylglycerols has to be drawn.
Concept Introduction:
Fatty acid leads to formation of lipid and consists of a carboxyl group
Soap is the long hydrocarbon chain with the metal salt of the fatty acid and is formed by the basic hydrolysis of triacylglycerol.
Waxes are type of nonpolar lipids that contain esters and are formed by the reaction of
Triacylglycerols are lipids that are formed by two or more similar or different fatty acids. They are also called triglycerides and are hydrophobic and nonpolar in nature. Addition of glycerol and three similar or different fatty acids results into triacylglycerols.
(b)
Interpretation:
Structure of example of fatty acids, soaps, waxes, and triacylglycerols has to be drawn.
Concept Introduction:
Refer to part (a).
(c)
Interpretation:
Whether fatty acids, soaps, waxes, and triacylglycerols are water-soluble or not has to be identified.
Concept Introduction:
Refer to part (a).
(d)
Interpretation:
Whether fatty acids, soaps, waxes, and triacylglycerols are soluble in hexane or not has to be identified.
Concept Introduction:
Refer to part (a).
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Chapter 15 Solutions
Principles of General, Organic, Biological Chemistry
- Nonearrow_forwardNonearrow_forwardman Campus Depa (a) Draw the three products (constitutional isomers) obtained when 2-methyl-3-hexene reacts with water and a trace of H2SO4. Hint: one product forms as the result of a 1,2-hydride shift. (1.5 pts) This is the acid-catalyzed alkene hydration reaction.arrow_forward
- (6 pts - 2 pts each part) Although we focused our discussion on hydrogen light emission, all elements have distinctive emission spectra. Sodium (Na) is famous for its spectrum being dominated by two yellow emission lines at 589.0 and 589.6 nm, respectively. These lines result from electrons relaxing to the 3s subshell. a. What is the photon energy (in J) for one of these emission lines? Show your work. b. To what electronic transition in hydrogen is this photon energy closest to? Justify your answer-you shouldn't need to do numerical calculations. c. Consider the 3s subshell energy for Na - use 0 eV as the reference point for n=∞. What is the energy of the subshell that the electron relaxes from? Choose the same emission line that you did for part (a) and show your work.arrow_forwardNonearrow_forward(9 Pts) In one of the two Rare Earth element rows of the periodic table, identify an exception to the general ionization energy (IE) trend. For the two elements involved, answer the following questions. Be sure to cite sources for all physical data that you use. a. (2 pts) Identify the two elements and write their electronic configurations. b. (2 pts) Based on their configurations, propose a reason for the IE trend exception. c. (5 pts) Calculate effective nuclear charges for the last electron in each element and the Allred-Rochow electronegativity values for the two elements. Can any of these values explain the IE trend exception? Explain how (not) - include a description of how IE relates to electronegativity.arrow_forward
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