Organic And Biological Chemistry
7th Edition
ISBN: 9781305081079
Author: STOKER, H. Stephen (howard Stephen)
Publisher: Cengage Learning,
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Textbook Question
Chapter 10.4, Problem 2QQ
Which of the following statements concerning the lock-and-key model for enzyme activity in incorrect?
- a. The active site has a fixed, rigid geometry.
- b. The active site has a geometry complementary to that of substrate.
- c. The active site has a geometry identical to that of the substrate.
- d. no correct response
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Using reaction free energy to predict equilibrium composition
Consider the following equilibrium:
2NO(g) +Cl₂ (g) = 2NOC1 (g) AGº = -41. kJ
Now suppose a reaction vessel is filled with 8.90 atm of chlorine (C12) and 5.71 atm of nitrosyl chloride (NOC1) at 1075. °C. Answer the following questions
about this system:
rise
Under these conditions, will the pressure of NOCI tend to rise or fall?
x10
fall
Is it possible to reverse this tendency by adding NO?
In other words, if you said the pressure of NOCI will tend to rise, can that
be changed to a tendency to fall by adding NO? Similarly, if you said the
pressure of NOCI will tend to fall, can that be changed to a tendency to
rise by adding NO?
yes
no
If you said the tendency can be reversed in the second question, calculate
the minimum pressure of NO needed to reverse it.
Round your answer to 2 significant digits.
atm
☑
18
Ar
Identifying the major species in weak acid or weak base equilibria
The preparations of two aqueous solutions are described in the table below. For each solution, write the chemical formulas of the major species present at
equilibrium. You can leave out water itself.
Write the chemical formulas of the species that will act as acids in the 'acids' row, the formulas of the species that will act as bases in the 'bases' row, and the
formulas of the species that will act as neither acids nor bases in the 'other' row.
You will find it useful to keep in mind that HCN is a weak acid.
acids:
0.29 mol of NaOH is added
to 1.0 L of a 1.2M HCN
solution.
bases:
☑
other:
0.09 mol of HCl is added to
acids:
1.0 L of a solution that is
bases:
0.3M in both HCN and
KCN.
other:
0,0,...
?
00.
18
Ar
日
Chapter 10 Solutions
Organic And Biological Chemistry
Ch. 10.1 - Which of the following statements concerning the...Ch. 10.1 - Prob. 2QQCh. 10.2 - Which of the following statements about a...Ch. 10.2 - Which of the following statements about cofactors...Ch. 10.2 - Prob. 3QQCh. 10.3 - Which of the following statements concerning an...Ch. 10.3 - Most enzyme names end with the suffix ase, but a...Ch. 10.3 - Which of the following pairings of enzyme type and...Ch. 10.3 - Which of the following pairings of enzyme type and...Ch. 10.4 - An enzyme active site is the location in an enzyme...
Ch. 10.4 - Which of the following statements concerning the...Ch. 10.4 - Which of the following enzyme properties is...Ch. 10.5 - The specificity of an enzyme that catalyzes the...Ch. 10.5 - Linkage-specific enzymes will act on a particular...Ch. 10.6 - The number of substrate molecules converted to...Ch. 10.6 - Prob. 2QQCh. 10.6 - Prob. 3QQCh. 10.7 - Extremozyme presence is not possible in which of...Ch. 10.7 - Prob. 2QQCh. 10.8 - Which of the following statements concerning a...Ch. 10.8 - Which of the following statements concerning an...Ch. 10.8 - Which of the following binds to an enzyme at a...Ch. 10.9 - Which of the following is an incorrect...Ch. 10.9 - Prob. 2QQCh. 10.9 - Which of the following statements applies to a...Ch. 10.10 - Prob. 1QQCh. 10.10 - Prob. 2QQCh. 10.11 - Prob. 1QQCh. 10.11 - Prob. 2QQCh. 10.12 - Prob. 1QQCh. 10.12 - Prob. 2QQCh. 10.12 - Prob. 3QQCh. 10.13 - Prob. 1QQCh. 10.13 - Which of the following statements about...Ch. 10.13 - In the recharging of a metal-containing enzyme by...Ch. 10.14 - Prob. 1QQCh. 10.14 - Prob. 2QQCh. 10.14 - Prob. 3QQCh. 10.14 - Which of the B vitamins has a name that draws...Ch. 10.14 - Prob. 5QQCh. 10.14 - Prob. 6QQCh. 10.15 - Prob. 1QQCh. 10.15 - Prob. 2QQCh. 10.15 - Prob. 3QQCh. 10.15 - Prob. 4QQCh. 10.15 - Prob. 5QQCh. 10 - What is the general role of enzymes in the human...Ch. 10 - Prob. 10.2EPCh. 10 - List two ways in which enzymes differ from...Ch. 10 - Occasionally the delicate nature of enzymes is...Ch. 10 - Indicate whether each of the following phrases...Ch. 10 - Indicate whether each of the following phrases...Ch. 10 - Prob. 10.7EPCh. 10 - Prob. 10.8EPCh. 10 - Prob. 10.9EPCh. 10 - Prob. 10.10EPCh. 10 - Prob. 10.11EPCh. 10 - Based on its name, indicate whether each of the...Ch. 10 - Predict the function of each of the following...Ch. 10 - Predict the function of each of the following...Ch. 10 - Prob. 10.15EPCh. 10 - What is the substrate for each of the enzymes...Ch. 10 - Suggest a name for an enzyme that catalyzes each...Ch. 10 - Suggest a name for an enzyme that catalyzes each...Ch. 10 - Prob. 10.19EPCh. 10 - Indicate whether each of the following pairings of...Ch. 10 - Prob. 10.21EPCh. 10 - Prob. 10.22EPCh. 10 - Identify the enzyme needed in each of the...Ch. 10 - Identify the enzyme needed in each of the...Ch. 10 - Indicate whether each of the following statements...Ch. 10 - Indicate whether each of the following statements...Ch. 10 - Indicate whether each of the statements in Problem...Ch. 10 - Indicate whether each of the statements in Problem...Ch. 10 - Prob. 10.29EPCh. 10 - Prob. 10.30EPCh. 10 - Prob. 10.31EPCh. 10 - Prob. 10.32EPCh. 10 - Prob. 10.33EPCh. 10 - Indicate whether each of the following statements...Ch. 10 - Prob. 10.35EPCh. 10 - Prob. 10.36EPCh. 10 - Prob. 10.37EPCh. 10 - Prob. 10.38EPCh. 10 - What type of specificity (absolute, group,...Ch. 10 - What type of specificity (absolute, group,...Ch. 10 - The following graph shows the relationship between...Ch. 10 - Based on the graphical information in Problem...Ch. 10 - Prob. 10.43EPCh. 10 - Based on the graphical information in Problem...Ch. 10 - Prob. 10.45EPCh. 10 - Prob. 10.46EPCh. 10 - Prob. 10.47EPCh. 10 - Prob. 10.48EPCh. 10 - Prob. 10.49EPCh. 10 - Prob. 10.50EPCh. 10 - Describe the effect that each of the following...Ch. 10 - Prob. 10.52EPCh. 10 - Prob. 10.53EPCh. 10 - Prob. 10.54EPCh. 10 - Indicate whether each of the following pairings of...Ch. 10 - Indicate whether each of the following pairings of...Ch. 10 - Prob. 10.57EPCh. 10 - Prob. 10.58EPCh. 10 - Prob. 10.59EPCh. 10 - Prob. 10.60EPCh. 10 - Prob. 10.61EPCh. 10 - Indicate whether each of the following statements...Ch. 10 - Prob. 10.63EPCh. 10 - Indicate whether each of the following statements...Ch. 10 - Prob. 10.65EPCh. 10 - Prob. 10.66EPCh. 10 - Prob. 10.67EPCh. 10 - Prob. 10.68EPCh. 10 - Prob. 10.69EPCh. 10 - What occurs during the covalent modification of an...Ch. 10 - Prob. 10.71EPCh. 10 - Prob. 10.72EPCh. 10 - Explain the difference in meaning, if any, between...Ch. 10 - Prob. 10.74EPCh. 10 - Prob. 10.75EPCh. 10 - Prob. 10.76EPCh. 10 - Prob. 10.77EPCh. 10 - Prob. 10.78EPCh. 10 - Prob. 10.79EPCh. 10 - Prob. 10.80EPCh. 10 - Prob. 10.81EPCh. 10 - What enzyme is denoted by each of the following...Ch. 10 - What is the medical diagnostic value associated...Ch. 10 - What is the medical diagnostic value associated...Ch. 10 - Indicate whether each of the following is a...Ch. 10 - Indicate whether each of the following is a...Ch. 10 - Prob. 10.87EPCh. 10 - Indicate whether each of the vitamins in Problem...Ch. 10 - Prob. 10.89EPCh. 10 - Prob. 10.90EPCh. 10 - Prob. 10.91EPCh. 10 - What are the structural differences between the...Ch. 10 - Prob. 10.93EPCh. 10 - Prob. 10.94EPCh. 10 - Prob. 10.95EPCh. 10 - Prob. 10.96EPCh. 10 - Prob. 10.97EPCh. 10 - Only eight of the nine water-soluble vitamins are...Ch. 10 - Indicate whether each of the following B vitamin...Ch. 10 - Indicate whether each of the following B vitamin...Ch. 10 - Which of the B vitamins has a structure that fits...Ch. 10 - Prob. 10.102EPCh. 10 - Prob. 10.103EPCh. 10 - Prob. 10.104EPCh. 10 - Prob. 10.105EPCh. 10 - Prob. 10.106EPCh. 10 - The coenzyme forms of B vitamins are involved in...Ch. 10 - Prob. 10.108EPCh. 10 - Prob. 10.109EPCh. 10 - What is the relationship between the plant pigment...Ch. 10 - Prob. 10.111EPCh. 10 - Prob. 10.112EPCh. 10 - Prob. 10.113EPCh. 10 - Prob. 10.114EPCh. 10 - Prob. 10.115EPCh. 10 - In terms of their source, how do vitamin D2 and...Ch. 10 - Prob. 10.117EPCh. 10 - Why is vitamin D often called the sunshine...Ch. 10 - Prob. 10.119EPCh. 10 - Prob. 10.120EPCh. 10 - Prob. 10.121EPCh. 10 - Prob. 10.122EPCh. 10 - What is the principal function of vitamin E in the...Ch. 10 - Why is vitamin E often given to premature infants...Ch. 10 - Prob. 10.125EPCh. 10 - Prob. 10.126EPCh. 10 - Prob. 10.127EPCh. 10 - Prob. 10.128EPCh. 10 - Indicate whether each of the following pairings of...Ch. 10 - Indicate whether each of the following pairings of...Ch. 10 - Prob. 10.131EPCh. 10 - Prob. 10.132EPCh. 10 - Prob. 10.133EPCh. 10 - Which of the 13 vitamins has a structure that fits...
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- Identifying the major species in weak acid or weak base equilibria The preparations of two aqueous solutions are described in the table below. For each solution, write the chemical formulas of the major species present at equilibrium. You can leave out water itself. Write the chemical formulas of the species that will act as acids in the 'acids' row, the formulas of the species that will act as bases in the 'bases' row, and the formulas of the species that will act as neither acids nor bases in the 'other' row. You will find it useful to keep in mind that HF is a weak acid. acids: 0.2 mol of KOH is added to 1.0 L of a 0.5 M HF solution. bases: Х other: ☐ acids: 0.10 mol of HI is added to 1.0 L of a solution that is 1.4M in both HF and NaF. bases: other: ☐ 0,0,... ด ? 18 Ararrow_forwardIdentifying the major species in weak acid or weak base equilibria The preparations of two aqueous solutions are described in the table below. For each solution, write the chemical formulas of the major species present at equilibrium. You can leave out water itself. Write the chemical formulas of the species that will act as acids in the 'acids' row, the formulas of the species that will act as bases in the 'bases' row, and the formulas of the species that will act as neither acids nor bases in the 'other' row. You will find it useful to keep in mind that NH3 is a weak base. acids: ☐ 1.8 mol of HCl is added to 1.0 L of a 1.0M NH3 bases: ☐ solution. other: ☐ 0.18 mol of HNO3 is added to 1.0 L of a solution that is 1.4M in both NH3 and NH₁Br. acids: bases: ☐ other: ☐ 0,0,... ? 000 18 Ar B 1arrow_forwardUsing reaction free energy to predict equilibrium composition Consider the following equilibrium: 2NH3 (g) = N2 (g) +3H₂ —N2 (g) AGº = 34. kJ Now suppose a reaction vessel is filled with 4.19 atm of ammonia (NH3) and 9.94 atm of nitrogen (N2) at 378. °C. Answer the following questions about this system: rise Under these conditions, will the pressure of NH 3 tend to rise or fall? ☐ x10 fall Х Is it possible to reverse this tendency by adding H₂? In other words, if you said the pressure of NH 3 will tend to rise, can that be changed to a tendency to fall by adding H₂? Similarly, if you said the pressure of NH3 will tend to fall, can that be changed to a tendency to rise by adding H₂? If you said the tendency can be reversed in the second question, calculate the minimum pressure of H₂ needed to reverse it. Round your answer to 2 significant digits. yes no atm 00. 18 Ar 무ㅎ ?arrow_forward
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