Introduction to General, Organic and Biochemistry
12th Edition
ISBN: 9780357391594
Author: Frederick A. Bettelheim; William H. Brown; Mary K. Campbell
Publisher: Cengage Learning US
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Chapter 20, Problem 63P
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Interpretation: The role of progesterone and similar compounds in contraceptive pills needs to be explained.
Concept Introduction: The characterization of steroids is done by the presence of four ring structures arranged in a specific configuration in the compound. They are found in the cell membrane and influence the fluidity of the membrane. They work by decreasing inflammation and reducing the activity of the immune system.
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MISSED THIS? Read Section 19.9 (Pages 878-881); Watch IWE 19.10
Consider the following reaction:
CH3OH(g)
CO(g) + 2H2(g)
(Note that AG,CH3OH(g) = -162.3 kJ/mol and AG,co(g)=-137.2 kJ/mol.)
Part A
Calculate AG for this reaction at 25 °C under the following conditions:
PCH₂OH
Pco
PH2
0.815 atm
=
0.140 atm
0.170 atm
Express your answer in kilojoules to three significant figures.
Ο ΑΣΦ
AG = -150
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kJ
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Calculate the free energy change under nonstandard conditions (AGrxn) by using the following relationship:
AGrxn = AGrxn + RTInQ,
AGxn+RTInQ,
where AGxn is the standard free energy change, R is the ideal gas constant, T is the temperature in kelvins, a
is the reaction quotient.
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Identify and provide a brief explanation of Gas Chromatography (GC) within the context of chemical analysis of food. Incorporate the specific application name, provide a concise overview of sample preparation methods, outline instrumental parameters and conditions ultilized, and summarise the outcomes and findings achieved through this analytical approach.
Chapter 20 Solutions
Introduction to General, Organic and Biochemistry
Ch. 20.2 - Prob. 20.1QCCh. 20.4 - Prob. 20.2QCCh. 20.5 - Prob. 20.3QCCh. 20.7 - Prob. 20.4QCCh. 20.8 - Prob. 20.5QCCh. 20.9 - Prob. 20.6QCCh. 20.10 - Prob. 20.7QCCh. 20.13 - Prob. 20.8QCCh. 20 - Prob. 1PCh. 20 - 21-2 Why are fats a good source of energy for...
Ch. 20 - 21-3 Proteins, nucleic acids, and carbohydrates...Ch. 20 - Prob. 4PCh. 20 - Prob. 5PCh. 20 - Draw the line-angle structure for the following:...Ch. 20 - Prob. 7PCh. 20 - What is the difference between the -system and...Ch. 20 - Prob. 9PCh. 20 - Prob. 10PCh. 20 - Prob. 11PCh. 20 - Prob. 12PCh. 20 - For the diglycerides in Problem 12 , predict which...Ch. 20 - 21-8 Predict which acid in each pair has the...Ch. 20 - Prob. 15PCh. 20 - Prob. 16PCh. 20 - Prob. 17PCh. 20 - Prob. 18PCh. 20 - 21-13 Rank the following in order of increasing...Ch. 20 - Prob. 20PCh. 20 - Prob. 21PCh. 20 - Prob. 22PCh. 20 - Prob. 23PCh. 20 - Prob. 24PCh. 20 - Prob. 25PCh. 20 - Prob. 26PCh. 20 - Prob. 27PCh. 20 - Prob. 28PCh. 20 - 21-29 Name all the groups of complex lipids that...Ch. 20 - Prob. 30PCh. 20 - Prob. 31PCh. 20 - Prob. 32PCh. 20 - Prob. 33PCh. 20 - Prob. 34PCh. 20 - Prob. 35PCh. 20 - Prob. 36PCh. 20 - Prob. 37PCh. 20 - Prob. 38PCh. 20 - 21-39 How does VLDL become LDL?Ch. 20 - Prob. 40PCh. 20 - Prob. 41PCh. 20 - Prob. 42PCh. 20 - Prob. 43PCh. 20 - 21-44 Describe the difference in structure between...Ch. 20 - Prob. 45PCh. 20 - Prob. 46PCh. 20 - Prob. 47PCh. 20 - 21-48 List all of the functional groups that make...Ch. 20 - 21-49 Explain how the constant elimination of bile...Ch. 20 - Prob. 50PCh. 20 - Prob. 51PCh. 20 - 21-52 What are the chemical and physiological...Ch. 20 - 21-53 How does aspirin, an anti-inflammatory drug,...Ch. 20 - Prob. 54PCh. 20 - Prob. 55PCh. 20 - For each of the processes below, tell whether it...Ch. 20 - Prob. 57PCh. 20 - Prob. 58PCh. 20 - Prob. 59PCh. 20 - Prob. 60PCh. 20 - Prob. 61PCh. 20 - Prob. 62PCh. 20 - Prob. 63PCh. 20 - Prob. 64PCh. 20 - Prob. 65PCh. 20 - Prob. 66PCh. 20 - Prob. 67PCh. 20 - Prob. 68PCh. 20 - Prob. 69PCh. 20 - 21-68 What is the role of taurine in lipid...Ch. 20 - Prob. 71PCh. 20 - 21-70 How many different triglycerides can you...Ch. 20 - Prob. 73PCh. 20 - Prob. 74PCh. 20 - Prob. 75PCh. 20 - Prob. 76PCh. 20 - Prob. 77PCh. 20 - 21-76 Which part of LDL interacts with the LDL...Ch. 20 - Prob. 79PCh. 20 - Prob. 80PCh. 20 - Prob. 81PCh. 20 - Prob. 82PCh. 20 - Prob. 83PCh. 20 - 21-82 Suggest a reason why the same protein system...Ch. 20 - Prob. 85PCh. 20 - Prob. 86PCh. 20 - 21-85 Which of the following statements is (are)...Ch. 20 - Prob. 88PCh. 20 - 21-87 Which statements are consistent with the...Ch. 20 - Prob. 90PCh. 20 - Prob. 91PCh. 20 - 21-90 To what extent do lipids and carbohydrates...Ch. 20 - Prob. 93PCh. 20 - Prob. 94PCh. 20 - Prob. 95PCh. 20 - Prob. 96PCh. 20 - Prob. 97PCh. 20 - Prob. 98PCh. 20 - Prob. 99PCh. 20 - Prob. 100PCh. 20 - Prob. 101PCh. 20 - 21-100 What are the functions of a cell membrane?...Ch. 20 - 21-101 Glycerophospholipids tend to have both a...Ch. 20 - Prob. 104P
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