General, Organic, and Biological Chemistry - 4th edition
4th Edition
ISBN: 9781259883989
Author: by Janice Smith
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 23, Problem 35P
Classify each substance as an oxidizing agent, a reducing agent, or neither: (a)
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Explain two (2) advantages of the acid-base reaction of vitamin C over the redox reaction
年一年
phosphoglycerate
mutase (PGM)
H-C-OPO;
H-- OH
H-S-OPO;
H-C- OH
H
H
3-Phosphoglycerate
(3PG)
2-Phosphoglycerate
(2PG)
Does the oxidation number change for the carbon atom to which the phosphate is attached? (i.e.,
does C3 in 3PG have a different oxidation number than C2 in 2PG?) If so, does it become higher
or lower?
Oxidation number decreases when the phosphate is moved from C3 to C2. Carbon 3 has an oxidation
number of 0; carbon 2 has an ox. number of +1.
There is no change in the oxidation number, both atoms have oxidation number of -1.
Oxidation number increases when the phosphate is moved from C3 to C2. Carbon 3 has an oxidation
number of 0; carbon 2 has an ox. number of +1.
Oxidation number decreases when the phosphate is moved from C3 to C2. Carbon 3 has an oxidation
number of -1; carbon 2 has an ox. number of 0.
There is no change in the oxidation number, both atoms have oxidation number of 0.
O Oxidation number increases when the phosphate is moved from C3 to C2. Carbon 3…
The free energy released by the hydrolysis of ATP under
standard conditions at pH 7.0 is 30.5 kJ/mol. If ATP is
hydrolyzed under standard conditions except at pH 5.0, is
more or less free energy released? Explain
Chapter 23 Solutions
General, Organic, and Biological Chemistry - 4th edition
Ch. 23.2 - Prob. 23.1PCh. 23.3 - Prob. 23.2PCh. 23.3 - The phosphorylation of glucose to glucose...Ch. 23.3 - Prob. 23.3PCh. 23.3 - Use the values for the hydrolysis of creatine...Ch. 23.4 - Prob. 23.2PPCh. 23.4 - Prob. 23.5PCh. 23.4 - Prob. 23.6PCh. 23.4 - Prob. 23.7PCh. 23.4 - Prob. 23.8P
Ch. 23.5 - Prob. 23.3PPCh. 23.5 - Prob. 23.9PCh. 23.5 - Prob. 23.10PCh. 23.5 - Prob. 23.11PCh. 23.6 - Prob. 23.12PCh. 23.6 - At several points in the electron transport chain,...Ch. 23.6 - In which region of the mitochondrion-the matrix or...Ch. 23 - Prob. 15PCh. 23 - Explain why mitochondria are called the...Ch. 23 - Prob. 17PCh. 23 - Prob. 18PCh. 23 - Prob. 19PCh. 23 - Prob. 20PCh. 23 - What are coupled reactions and why does coupling...Ch. 23 - Prob. 22PCh. 23 - Prob. 23PCh. 23 - Prob. 24PCh. 23 - Prob. 25PCh. 23 - Prob. 26PCh. 23 - Prob. 27PCh. 23 - Prob. 28PCh. 23 - Prob. 29PCh. 23 - Prob. 30PCh. 23 - Prob. 31PCh. 23 - Prob. 32PCh. 23 - (a) Draw the structure of the high-energy...Ch. 23 - Prob. 34PCh. 23 - Classify each substance as an oxidizing agent, a...Ch. 23 - Classify each substance as an oxidizing agent, a...Ch. 23 - When a substrate is oxidized, is NAD+ oxidized or...Ch. 23 - When a substrate is reduced, is FADH2 oxidized or...Ch. 23 - Prob. 39PCh. 23 - Prob. 40PCh. 23 - Prob. 41PCh. 23 - Prob. 42PCh. 23 - Prob. 43PCh. 23 - Prob. 44PCh. 23 - Prob. 45PCh. 23 - Prob. 46PCh. 23 - The conversion of isocitrate to ketoglutarate in...Ch. 23 - Prob. 48PCh. 23 - Prob. 49PCh. 23 - Prob. 50PCh. 23 - Prob. 51PCh. 23 - What is the role of each of the following in the...Ch. 23 - What is the role of each of the following in the...Ch. 23 - Prob. 54PCh. 23 - Prob. 55PCh. 23 - Prob. 56PCh. 23 - Prob. 57PCh. 23 - Prob. 58PCh. 23 - Prob. 59PCh. 23 - Prob. 60PCh. 23 - Prob. 61PCh. 23 - Prob. 62PCh. 23 - Prob. 63PCh. 23 - Prob. 64PCh. 23 - Prob. 65PCh. 23 - Prob. 66PCh. 23 - Prob. 67PCh. 23 - Prob. 68PCh. 23 - Prob. 69PCh. 23 - Prob. 70PCh. 23 - Prob. 71PCh. 23 - Prob. 72PCh. 23 - Prob. 73PCh. 23 - Prob. 74PCh. 23 - Prob. 75CPCh. 23 - Prob. 76CP
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- For a given acid HA, it was determined that at pH 6.0 the concentration of the conjugate base [A] was 0.075 M and the acid [HA] was 0.025 M. What percent of this acid is ionized at pH 6.0? What is the pKa of this acid? What pH would this acid be 50% lonized?arrow_forwardGiven the following reaction, identify the oxidant. 3Fe2O3 + CO ⇋ 2Fe3O4 + CO2 Fe3O4 CO2 CO Nothing is oxizided or reduced in the reaction. Fe2O3arrow_forward18) Atropine and cocaine are used in the diagnosis of diseases.arrow_forward
- When the terminal phosphate is cleaved from the ADP molecule, the products are adenosine diphosphate and inorganic phosphate: ATP + H2O ––> ADP + Pi where Pi stands for the various forms of phosphate that exist at the pH of the particular solution. If the total concentration of Pi is 2.5 x 10–2 M, what are the concentrations of the predominant forms of phosphate that exist at pH 7.4?arrow_forwardHow much CO2 can be derived from 500 g lactose?arrow_forwardClassify the following compounds as endergonic or exergonic : (a) glucose,(b) methylamine, (c) octane, (d) ethanol.arrow_forward
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