Organic Chemistry (8th Edition)
8th Edition
ISBN: 9780134042282
Author: Paula Yurkanis Bruice
Publisher: PEARSON
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Chapter 22.10, Problem 18P
Arginine and lysine side chains fit into trypsin’s binding pocket (Figure 22.5). One of these side chains forms a direct hydrogen bond with serine and an indirect hydrogen bond (mediated through a water molecule) with aspartate. The other side chain forms direct hydrogen bonds with both serine and aspartate. Which is which?
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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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Chapter 22 Solutions
Organic Chemistry (8th Edition)
Ch. 22.2 - Compare each of the mechanisms listed here with...Ch. 22.2 - Prob. 3PCh. 22.2 - Prob. 4PCh. 22.3 - a. Draw the mechanism for the following reaction...Ch. 22.5 - Prob. 7PCh. 22.5 - Propose a mechanism for the Co2+ catalyzed...Ch. 22.6 - Prob. 9PCh. 22.7 - Prob. 10PCh. 22.7 - Prob. 12PCh. 22.7 - Prob. 13P
Ch. 22.9 - Which of the following amino acid side chains can...Ch. 22.9 - Which of the following C-terminal peptide bonds is...Ch. 22.9 - Carboxypeptidase A has esterase activity as well...Ch. 22.10 - Arginine and lysine side chains fit into trypsins...Ch. 22.10 - Explain why serine proteases do not catalyze...Ch. 22.11 - If H2 18O is used in the hydrolysis reaction...Ch. 22.11 - Draw the pH-activity profile for an enzyme that...Ch. 22.12 - The pHactivity profile for glucose-6-phosphate...Ch. 22.12 - Prob. 23PCh. 22.13 - Draw the mechanism for the hydroxide ion-catalyzed...Ch. 22.13 - What advantage does the enzyme gain by forming an...Ch. 22.13 - Prob. 26PCh. 22.13 - Prob. 27PCh. 22.13 - Aldolase shows no activity if it is incubated with...Ch. 22 - Which of the following parameters would be...Ch. 22 - Prob. 29PCh. 22 - Prob. 30PCh. 22 - Prob. 31PCh. 22 - Indicate the type of catalysis that is occurring...Ch. 22 - The deuterium kinetic isotope effect (KH2O/KD2O)...Ch. 22 - Prob. 34PCh. 22 - Co2+ catalyzes the hydrolysis of the lactam shown...Ch. 22 - there are two kinds of aldolases. Class I...Ch. 22 - Prob. 37PCh. 22 - The hydrolysis of the ester shown here is...Ch. 22 - Prob. 39PCh. 22 - At pH = 12, the rate of hydrolysis of ester A is...Ch. 22 - 2-Acetoxycyclohexyl tosylate reacts with acetate...Ch. 22 - Proof that an imine was formed between aldolase...Ch. 22 - Prob. 43PCh. 22 - a. Explain why the alkyl halide shown here reacts...Ch. 22 - Triosephosphate isomerase (TIM) catalyzes the...
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