12,13,14Homework Answers
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14 Answe 7.5(a)
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12,13,14
12 Assume that an enzyme-catalysed biochemical reaction is carried out in a solution ontaining 0.2...
An enzyme-catalyzed reaction is carried out in a solution containing 0.2 M tris((hydroxymethyl)aminomethane (known as Tris,...
An enzyme-catalyzed reaction is carried out in a solution containing 0.2 M tris((hydroxymethyl)aminomethane (known as Tris, pK, 8.1). Shown below is the chemical structure in its protonated form. *NH, HOCH, C- CH, OH CHLOH The pH of the reaction mixture at the start is 7.8. As a result of the reaction, 0.033 moles/liter of His consumed. What will be the ratio of Tris (free base) to Tris (protonated form) at the beginning of the reaction? A B. C. D. 5:1....
An enzyme-catalyzed reaction is carried out in a 100 mL solution containing 0.1 M TRIS buffer....
An enzyme-catalyzed reaction is carried out in a 100 mL solution containing 0.1 M TRIS buffer. Th pH of the reaction mixture at the start was 8.0. As a result of the reaction, 0.002 mol of H^+ were produced. What is the ratio of TRIS base to TRIS acid at the start of the experiment? What is the ration at the end of the experiment? What is the final PH?
12. Which is the major product of the reaction shown? (a) (b) (c) (d) 13. What...
12. Which is the major product of the reaction shown? (a) (b)
(c) (d) 13. What are all of the possible products formed in the
following reaction? (choose all correct answers) (a) (b) (c) (d)
(e) (f) 14. The three compounds below can form a carbocation in the
presence of H2O and H2SO4. Which ones will form the same
carbocation? (a) I and II (b) I and III (c) II and III (d) all
three will form the same carbocation...
Synthesis of Compound (1) using the Wittig reaction was carried out with CH3CH2Br and which compound...
Synthesis of Compound (1) using the Wittig reaction was carried out with CH3CH2Br and which compound as starting materials? 1.P(Ph). CH3CH2Br - 2. base 3. ?? Compound (1) Cor съсно, не с gloch oh (D) The PCC oxidation of (3R,5R)-5 methyl-3-heptanol forms? PCC (3R,5R)-5-methyl-3-heptanol - A) A chiral compound of unknown configuration B) A chiral compound of known configuration C) A racemic mixture D) An achiral compound Which term is associated with 13 C-NMR? A) multiplicity B) wave number C)...
BACKGROUND The first part of this assignment focuses on the thermodynamics of enzyme-catalysed reactions. To answer the questions posed you will need apply the following two equations. Note that you...
BACKGROUND The first part of this assignment focuses on the thermodynamics of enzyme-catalysed reactions. To answer the questions posed you will need apply the following two equations. Note that you may need to re- arrange these equations to determine the value you need. You also need to take care with the units of the values you use and determine. The first equation defines the relationship between the change in free energy (AG ") and the equilibrium between the products and...
5) Determine the value of Kc for the following reaction if the equilibrium concentrations are as...
5) Determine the value of Kc for the following reaction if the equilibrium concentrations are as follows: [NO2]eq = 0.85 M and [NO]eq=0.38 M. 2 NO2(g) - N2048) A) 2.2 B) 1.9 C) 0.022 D) 0.22 E) 0.53 6) Which of the following statements is true? A) If Q=K, it means the reaction is not at equilibrium. B) If Q<K, it means the forward reaction will proceed to the right) to form more reactants. C) IFO <K, it means the...
can’t figure any of this out, please help all of it 1-5. Match the functional group...
can’t figure any of this out, please help all of it
1-5. Match the functional group indicated by the arrow to the correct classification Quinine used to treat malaria 2. OH Hºme Church Hyco-OH Nysatin A, 3. CH, CH, OH A) primary alcohol B) secondary alcohol C) tertiary alcohol D) phenol E) thiol сн, он CH, OH не OH CONH2 -OH Tetracycline, an antibiotic 6-10. Given the following list of acid strengths of some medications, match the acid to the...
6) Which of the following statements is true? A) If Q = K, it means the reaction is not at equilibrium B) If Q<...
6) Which of the following statements is true? A) If Q = K, it means the reaction is not at equilibrium B) If Q< K, it means the forward reaction will proceed (to the right) to form more reactants. C) If Q< K, it means the reverse reaction will proceed (to the left) to form more reactants. D) If Q> K, it means the forward reaction will proceed (to the right) to form more reactants E) If Q> K, it...
10. What is subject of chemistry? 2 points Your answer 4 points 11. 60 % solution...
10. What is subject of chemistry? 2 points Your answer 4 points 11. 60 % solution of H2SO4 has density 1.50 g/ml (a) calculate molarity of the solution: (b) How many millilitres of this solution we need to react completely with 50 ml of 0.1 M NaOH? Your answer 12. What is a buffer mixture? Calculate pH and pOH of 0.005 M solution of 3 points Ba(OH)2 (strong base) Your answer 13. Complete the reactions, write the reactions in the...
Multiple Choice (2 pts each) 6: Calculate the pH of a buffer containing 0.010 M lactic...
Multiple Choice (2 pts each) 6: Calculate the pH of a buffer containing 0.010 M lactic acid (pK,-3.86) and 0.050 M sodium lactate 1: The aqueous environment of cells: A. Is generally irrelevant to biochemical structures and processes B. Serves as a source of energy for biochemical A. 3.16 B. 4.56 processes С. 3.82 D. 3.9 C. Provides an appropriate context for polar molecules and H-bonding that are critical for life D. Allows biochemical molecules to move freely in solution...
An enzyme-catalyzed reaction is carried out in a solution containing 0.2 M tris((hydroxymethyl)aminomethane (known as Tris, pK, 8.1). Shown below is the chemical structure in its protonated form. *NH, HOCH, C- CH, OH CHLOH The pH of the reaction mixture at the start is 7.8. As a result of the reaction, 0.033 moles/liter of His consumed. What will be the ratio of Tris (free base) to Tris (protonated form) at the beginning of the reaction? A B. C. D. 5:1....
12. Which is the major product of the reaction shown? (a) (b)
(c) (d) 13. What are all of the possible products formed in the
following reaction? (choose all correct answers) (a) (b) (c) (d)
(e) (f) 14. The three compounds below can form a carbocation in the
presence of H2O and H2SO4. Which ones will form the same
carbocation? (a) I and II (b) I and III (c) II and III (d) all
three will form the same carbocation...
Synthesis of Compound (1) using the Wittig reaction was carried out with CH3CH2Br and which compound as starting materials? 1.P(Ph). CH3CH2Br - 2. base 3. ?? Compound (1) Cor съсно, не с gloch oh (D) The PCC oxidation of (3R,5R)-5 methyl-3-heptanol forms? PCC (3R,5R)-5-methyl-3-heptanol - A) A chiral compound of unknown configuration B) A chiral compound of known configuration C) A racemic mixture D) An achiral compound Which term is associated with 13 C-NMR? A) multiplicity B) wave number C)...
BACKGROUND The first part of this assignment focuses on the thermodynamics of enzyme-catalysed reactions. To answer the questions posed you will need apply the following two equations. Note that you may need to re- arrange these equations to determine the value you need. You also need to take care with the units of the values you use and determine. The first equation defines the relationship between the change in free energy (AG ") and the equilibrium between the products and...
5) Determine the value of Kc for the following reaction if the equilibrium concentrations are as follows: [NO2]eq = 0.85 M and [NO]eq=0.38 M. 2 NO2(g) - N2048) A) 2.2 B) 1.9 C) 0.022 D) 0.22 E) 0.53 6) Which of the following statements is true? A) If Q=K, it means the reaction is not at equilibrium. B) If Q<K, it means the forward reaction will proceed to the right) to form more reactants. C) IFO <K, it means the...
can’t figure any of this out, please help all of it
1-5. Match the functional group indicated by the arrow to the correct classification Quinine used to treat malaria 2. OH Hºme Church Hyco-OH Nysatin A, 3. CH, CH, OH A) primary alcohol B) secondary alcohol C) tertiary alcohol D) phenol E) thiol сн, он CH, OH не OH CONH2 -OH Tetracycline, an antibiotic 6-10. Given the following list of acid strengths of some medications, match the acid to the...
6) Which of the following statements is true? A) If Q = K, it means the reaction is not at equilibrium B) If Q< K, it means the forward reaction will proceed (to the right) to form more reactants. C) If Q< K, it means the reverse reaction will proceed (to the left) to form more reactants. D) If Q> K, it means the forward reaction will proceed (to the right) to form more reactants E) If Q> K, it...
10. What is subject of chemistry? 2 points Your answer 4 points 11. 60 % solution of H2SO4 has density 1.50 g/ml (a) calculate molarity of the solution: (b) How many millilitres of this solution we need to react completely with 50 ml of 0.1 M NaOH? Your answer 12. What is a buffer mixture? Calculate pH and pOH of 0.005 M solution of 3 points Ba(OH)2 (strong base) Your answer 13. Complete the reactions, write the reactions in the...
Multiple Choice (2 pts each) 6: Calculate the pH of a buffer containing 0.010 M lactic acid (pK,-3.86) and 0.050 M sodium lactate 1: The aqueous environment of cells: A. Is generally irrelevant to biochemical structures and processes B. Serves as a source of energy for biochemical A. 3.16 B. 4.56 processes С. 3.82 D. 3.9 C. Provides an appropriate context for polar molecules and H-bonding that are critical for life D. Allows biochemical molecules to move freely in solution...
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