General, Organic, and Biological Chemistry: Structures of Life (5th Edition)
5th Edition
ISBN: 9780321967466
Author: Karen C. Timberlake
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 11.9, Problem 11.67QAP
Which of the following represents a buffer system? Explain.
a. NaOH and NaCI
b.
c. HF and KF
d. KCI and NaCI
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Which of the following pairs cannot be used to make a buffer?
a.
HF and NaF
b.
HC2H3O2 and NaOH
c.
HBr and KBr
d.
NH3 and NH4Cl
Consider the buffer system of carbonic acid (H₂CO₂) and its salt, KHCO₂, which provides the conjugate base, HCO,.
H_COjlog) + HJO W 7 HyO" loạ) + HCOy loa)
How does the buffer react when some base is added?
The bicarbonate ion (HCO) of the buffer reacts with the base.
OHCO and H₂CO, both react with the base.
O The buffer does not react.
O The carbonic acid (H₂CO₂) of the buffer reacts with the base
Question 15
Indicate whether each of the following reactions is an example of reaction of an acid with a metal, reaction of an acid with a carbonate, or acid-base
neutralization reaction using the dropdown on the right.
Reaction A:
ZnCO3(s) + 2HBr(aq) → ZnBr₂(aq) + CO₂(g) + H₂O(l)
Reaction B:
Zn(s) + 2HCl(aq) → ZnCl₂(aq) + H₂(g)
HCI(g) + NaHCO3(s)→ NaCl(aq) + CO₂(g) + H₂O(0)
H₂SO4(aq) + Mg(OH)2(s)→ MgSO4(aq) + 2H₂O(1)
3LIOH(aq) + H₂PO₂(aq) → Li₂PO₂(aq) + 3H₂O(0)
Cal(s) + H₂SO4(aq) → H₂(g) + CaSO₂(aq)
Reaction C:
Reaction D:
Reaction E:
Reaction E
Which of the following cannot be mixed together in water to produce a buffer solution? Explain why.
a.
HCN and NaOH
b.
HClO 3 and NaClO 3
c.
HNO3 and NaNO3
d.
NH 3 and HCl
e.
HF and KF
Chapter 11 Solutions
General, Organic, and Biological Chemistry: Structures of Life (5th Edition)
Ch. 11.1 - Indicate whether each of the following statements...Ch. 11.1 - Prob. 11.2QAPCh. 11.1 - Prob. 11.3QAPCh. 11.1 - Name each of the following acids or bases: a....Ch. 11.1 - Write formulas for each of the following acids and...Ch. 11.1 - Write formulas for each of the following acids and...Ch. 11.2 - Identify the reactant that is a Bronsted-Lowry...Ch. 11.2 - Prob. 11.8QAPCh. 11.2 - Prob. 11.9QAPCh. 11.2 - Prob. 11.10QAP
Ch. 11.2 - Prob. 11.11QAPCh. 11.2 - Prob. 11.12QAPCh. 11.2 - Identify the Bronsted-Lowry acid-base pairs in...Ch. 11.2 - Prob. 11.14QAPCh. 11.2 - Prob. 11.15QAPCh. 11.2 - Prob. 11.16QAPCh. 11.3 - What is meant by the phrase ”A strong acid as a...Ch. 11.3 - Prob. 11.18QAPCh. 11.3 - Prob. 11.19QAPCh. 11.3 - Prob. 11.20QAPCh. 11.3 - Prob. 11.21QAPCh. 11.3 - Prob. 11.22QAPCh. 11.3 - Prob. 11.23QAPCh. 11.3 - Prob. 11.24QAPCh. 11.3 - Prob. 11.25QAPCh. 11.3 - Prob. 11.26QAPCh. 11.4 - Answer true or false for each of the following: A...Ch. 11.4 - Prob. 11.28QAPCh. 11.4 - Prob. 11.29QAPCh. 11.4 - Consider the following acids and their...Ch. 11.4 - Prob. 11.31QAPCh. 11.4 - Prob. 11.32QAPCh. 11.5 - Why are the concentrations of H3O+ and OH- equal...Ch. 11.5 - Prob. 11.34QAPCh. 11.5 - Prob. 11.35QAPCh. 11.5 - Prob. 11.36QAPCh. 11.5 - Prob. 11.37QAPCh. 11.5 - Prob. 11.38QAPCh. 11.5 - Prob. 11.39QAPCh. 11.5 - Prob. 11.40QAPCh. 11.5 - 11.41 Calculate the of each aqueous solution with...Ch. 11.5 - Prob. 11.42QAPCh. 11.6 - Prob. 11.43QAPCh. 11.6 - Prob. 11.44QAPCh. 11.6 - Prob. 11.45QAPCh. 11.6 - Prob. 11.46QAPCh. 11.6 - Prob. 11.47QAPCh. 11.6 - Prob. 11.48QAPCh. 11.6 - Prob. 11.49QAPCh. 11.6 - Prob. 11.50QAPCh. 11.6 - Prob. 11.51QAPCh. 11.6 - Prob. 11.52QAPCh. 11.6 - Prob. 11.53QAPCh. 11.6 - Prob. 11.54QAPCh. 11.7 - Prob. 11.55QAPCh. 11.7 - Complete and balance the equation for each of the...Ch. 11.7 - Prob. 11.57QAPCh. 11.7 - Prob. 11.58QAPCh. 11.7 - Prob. 11.59QAPCh. 11.7 - Prob. 11.60QAPCh. 11.8 - Prob. 11.61QAPCh. 11.8 - Prob. 11.62QAPCh. 11.8 - Prob. 11.63QAPCh. 11.8 - Prob. 11.64QAPCh. 11.8 - A solution of 0.204 M NaOH is used to titrate 50.0...Ch. 11.8 - Prob. 11.66QAPCh. 11.9 - Which of the following represents a buffer system?...Ch. 11.9 - Prob. 11.68QAPCh. 11.9 - Prob. 11.69QAPCh. 11.9 - Prob. 11.70QAPCh. 11.9 - Prob. 11.71QAPCh. 11.9 - Prob. 11.72QAPCh. 11.9 - Prob. 11.73QAPCh. 11.9 - Prob. 11.74QAPCh. 11.9 - Why would the pH of your blood plasma increase if...Ch. 11.9 - Why would the pH of your blood plasma decrease if...Ch. 11.9 - Prob. 11.77QAPCh. 11.9 - Someone with severe diabetes obtains energy by the...Ch. 11.9 - Prob. 11.79QAPCh. 11.9 - When food enters the stomach, HCI is released and...Ch. 11.9 - Prob. 11.81QAPCh. 11.9 - Prob. 11.82QAPCh. 11.9 - Prob. 11.83QAPCh. 11.9 - Prob. 11.84QAPCh. 11.9 - Prob. 11.85QAPCh. 11.9 - Prob. 11.86QAPCh. 11 - Prob. 11.87UTCCh. 11 - Prob. 11.88UTCCh. 11 - Prob. 11.89UTCCh. 11 - Prob. 11.90UTCCh. 11 - Prob. 11.91UTCCh. 11 - Prob. 11.92UTCCh. 11 - Prob. 11.93UTCCh. 11 - Prob. 11.94UTCCh. 11 - Prob. 11.95UTCCh. 11 - Prob. 11.96UTCCh. 11 - Identify each of the following as an acid, base,...Ch. 11 - Idenúfy each of the following as an acid, base, or...Ch. 11 - Complete the following table: (11.2) Acid...Ch. 11 - Complete the following table: (11.2) Base...Ch. 11 - Using Table 11.3, identify the stronger acid in...Ch. 11 - Prob. 11.102AQAPCh. 11 - Determine the pH for each of the following...Ch. 11 - Determine the pH for each of the following...Ch. 11 - Prob. 11.105AQAPCh. 11 - Prob. 11.106AQAPCh. 11 - Calculate the [H3O+] and [OH] for a solution with...Ch. 11 - Calculate the [H3O+]and [OH]for a solution with...Ch. 11 - Solution A has a pH of 4.5, and solution B has a...Ch. 11 - Solution X has a pH of 9.5, and solution Y has a...Ch. 11 - Prob. 11.111AQAPCh. 11 - Prob. 11.112AQAPCh. 11 - What is the pH of a solution prepared by...Ch. 11 - Prob. 11.114AQAPCh. 11 - For each of the following: (11.2, 11.3) 1. H2S a....Ch. 11 - Prob. 11.116CQCh. 11 - Prob. 11.117CQCh. 11 - Prob. 11.118CQCh. 11 - Prob. 11.119CQCh. 11 - Prob. 11.120CQCh. 11 - Prob. 11.121CQCh. 11 - Prob. 11.122CQCh. 11 - Prob. 11.123CQCh. 11 - Prob. 11.124CQCh. 11 - Prob. 11.125CQCh. 11 - Prob. 11.126CQCh. 11 - Prob. 11.127CQCh. 11 - Prob. 11.128CQCh. 11 - Prob. 11.129CQCh. 11 - Prob. 11.130CQCh. 11 - Prob. 19CICh. 11 - Prob. 20CICh. 11 - Prob. 21CICh. 11 - Prob. 22CICh. 11 - Prob. 23CICh. 11 - Prob. 24CICh. 11 - A volume of 200.0 mL of a carbonic acid buffer for...Ch. 11 - Prob. 26CI
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- Identify each pair that could form a buffer. (a) NaOH and NaCl (b) NaOH and NH3 (c) Na3PO4 and Na2HPO4arrow_forwardIdentify each pair that could form a buffer. (a) HCl and CH3COOH (b) NaH2PO4 and Na2HPO4 (c) H2CO3 and NaHCO3arrow_forwardBriefly describe how a buffer solution can control the pH of a solution when strong acid is added and when strong base is added. Use NH3/NH4Cl as an example of a buffer and HCl and NaOH as the strong acid and strong base.arrow_forward
- Indicate whether each of the following statements is true or false. If the statement is false, restate it to make it true. (a) The formate ion (CHO2-) concentration in 0.10 M HCHO2 is the same as in 0.10 M NaCHO2. (b) A buffer can be destroyed by adding too much strong acid. (c) A buffer can be made up by any combination of weak acid and weak base. (d) Because Ka for HCO3- is4.71011, Kb for HCO3- is2.1104.arrow_forwardWhat is meant by the capacity of a buffer? Describe a buffer with low capacity and the same buffer with greater capacity.arrow_forwardEnough water is added to the buffer in Question 30 to make the total volume 5.00 L. (a) Calculate the pH of the buffer. (b) Calculate the pH of the buffer after adding 0.0250 mol of HCl to 0.376 L of the buffer. (c) Calculate the pH of the buffer after adding 0.0250 mol of KOH to 0.376 L of the buffer. (d) Compare your answers to Question 30 (a-c) with your answers to (a-c) of this problem. (e) Comment on the effect of dilution on the pH of a buffer and on its buffer capacity. Âarrow_forward
- Each symbol in the box below represents a mole of a component in one liter of a buffer solution; represents the anion (X-), = the weak acid (HX), = H+, and =OH. Water molecules and the few H+ and OH- ions from the dissociation of HX and X- are not shown. The box contains 10 mol of a weak acid, , in a liter of solution. Show what happens upon (a) the addition of 2 mol of OH- (2 ). (b) the addition of 5 mol of OH- (5 ). (c) the addition of 10 mol of OH- (10 ). (d) the addition of 12 mol of OH- (12 ). Which addition (a)-(d) represents neutralization halfway to the equivalence point?arrow_forward8-71 Explain why you do not need to know the chemical formula of a buffer compound to use it.arrow_forwardConsider the weak acids in Table 13.2. Which acid-base pair would be best for a buffer at a pH of (a) 3.0(b) 6.5 (c) 12.0arrow_forward
- Two samples of 1.00 M HCl of equivalent volumes are prepared. One sample is titrated to the equivalence point with a 1.00 M solution of sodium hydroxide, while the other sample is titrated to the equivalence point with a 1.00 M solution of calcium hydroxide. a Compare the volumes of sodium hydroxide and calcium hydroxide required to reach the equivalence point for each titration. b Determine the pH of each solution halfway to the equivalence point. c Determine the pH of each solution at the equivalence point.arrow_forwardAn important component of blood is the buffer combination of bicarbonate ion and carbonic acid. Consider blood with a pH of 7.42. a What is the ratio of [H2CO3] to [HCO3]? b What does the pH become if 15% of the bicarbonate ions are converted to carbonic acid? c What does the pH become if 25% of the carbonic acid molecules are converted to bicarbonate ions?arrow_forwardA solution of weak base is titrated to the equivalence point with a strong acid. Which one of the following statements is most likely to be correct? a The pH of the solution at the equivalence point is 7.0. b The pH of the solution is greater than 13.0. c The pH of the solution is less than 2.0. d The pH of the solution is between 2.0 and 7.0. e The pH of the solution is between 7.0 and 13.0. The reason that best supports my choosing the answer above is a Whenever a solution is titrated with a strong acid, the solution will be very acidic. b Because the solution contains a weak base and the acid (titrant) is used up at the equivalence point, the solution will be basic. c Because the solution contains the conjugate acid of the weak base at the equivalence point, the solution will be acidic.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning
Chemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning
General Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage Learning
Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning
Chemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage Learning
Chemistry: The Molecular Science
Chemistry
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:Cengage Learning
Chemistry & Chemical Reactivity
Chemistry
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:Cengage Learning
General Chemistry - Standalone book (MindTap Cour...
Chemistry
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Cengage Learning
Chemistry: Principles and Reactions
Chemistry
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:Cengage Learning
Chemistry: An Atoms First Approach
Chemistry
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Cengage Learning
General Chemistry | Acids & Bases; Author: Ninja Nerd;https://www.youtube.com/watch?v=AOr_5tbgfQ0;License: Standard YouTube License, CC-BY