General Chemistry: Principles and Modern Applications (11th Edition)
11th Edition
ISBN: 9780132931281
Author: Ralph H. Petrucci, F. Geoffrey Herring, Jeffry D. Madura, Carey Bissonnette
Publisher: PEARSON
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Textbook Question
Chapter 17, Problem 86IAE
Calculate the pH of a solution that is 0.050 U acetic acid and 0.010 U phenylacetic acid.
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Students have asked these similar questions
Using the table of the weak base below, you have chosen Ammonia as your weak base in the buffer solution. You have already added enough of the conjugate acid salt to make the buffer solution concentration at 0.65 M in this salt. The desired
pH of the buffer should be equal to 8.8.
Values of K, for Some Common Weak Bases
Conjugate
Acid
Name
Formula
Ammonia
Methylamine
Ethylamine
Aniline
NH3
CH;NH2
CH;NH2
C,H;NH2
C;H;N
NH,+
CH;NH3+
CH5NH3*
CH;NH3*
C;H;NH+
1.8 × 10-5
4.38 × 10-4
5.6 x 10-4
3.8 × 10-10
Pyridine
1.7 x 10-9
2. Compute for pKb. (Write your answer in 2 decimal places).
An analytical chemist is titrating 106.0 mL of a 0.1800M solution of piperidine (C5H₁NH) with a 0.7800M solution of HIO3. The pK, of
piperidine is 2.89. Calculate the pH of the base solution after the chemist has added 15.4 mL of the HIO3 solution to it.
Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of HIO3 solution added.
Round your answer to 2 decimal places.
pH =
X
B
Ar
An analytical chemist is titrating 196.9 mL of a 0.1800M solution of piperidine (C-H₁0NH) with a 0.2000 M
solution of HNO3. The pK, of piperidine is 2.89. Calculate the pH of the base solution after the chemist has
added 209.3 mL of the HNO3 solution to it.
b
Note for advanced students: you may assume the final volume equals the initial volume of the solution plus
the volume of HNO3 solution added.
Round your answer to 2 decimal places.
pH
=
0
Chapter 17 Solutions
General Chemistry: Principles and Modern Applications (11th Edition)
Ch. 17 - For a solution that e 0.275M CH2CH2 COOH...Ch. 17 - For a solution that is 0164 U NH2 and 0.102MNH4Cl...Ch. 17 - Prob. 3ECh. 17 - In Example 16-4, we calculated the percent...Ch. 17 - Calculate [H2OOH-] in a solution that is (a)...Ch. 17 - Calculate [OH-] in a solution that is (a) 0.0062 U...Ch. 17 - What concentration of formate ion, [HCOO-], should...Ch. 17 - What concentration of ammonia. [NH2] , should be...Ch. 17 - Calculate the pH of a buffer that is a. 0.012 M...Ch. 17 - Lactic acid, CH2CH(OH)COOH , is found in sour...
Ch. 17 - Indicate which of the following aqueous solutions...Ch. 17 - The H2PO4-HPO4- combination plays a role in...Ch. 17 - What is the pH of a solution Obtained by adding...Ch. 17 - What the pH of solution prepared by dissolving...Ch. 17 - You wish to prepare a buffer solution w pH = 945...Ch. 17 - You prepare a buffer solution by dissolving 2.00 g...Ch. 17 - If 0.55 ml. of 12 M HCI is added to 0100 L of the...Ch. 17 - If 0.35 mL of 15 P.4 NH is added to 0750 L of the...Ch. 17 - You are asked to prepare e buffer solution why a...Ch. 17 - You are asked to reduce the pH of the 03001 of...Ch. 17 - Given 1.00 L of a solution that is 0.100 hl...Ch. 17 - Given 125mL of a solution that is 0.0500 M CH2NH2...Ch. 17 - A solution of volume 750 mL contars 15.5 mmol...Ch. 17 - A solution of volume 0.500 L contains 1.68 g NH...Ch. 17 - A handbook lets various procedures for preparing...Ch. 17 - An acetic acid-sodium acetate buffer can be...Ch. 17 - A handbook lists the following data: Which of...Ch. 17 - With reference to the indicators listed in...Ch. 17 - In use of acid—base indicators, a. Why is it...Ch. 17 - The indicator methyl red has a pKHIN=4.95 . It...Ch. 17 - Phenol red indicator changes from yellow to red in...Ch. 17 - Thymol blue indicator has two pH ranges. It...Ch. 17 - In the titration of 10.00 mL of 0.04050 M HCI with...Ch. 17 - Solution (a) is 1000 mL of 0.100 N HCI and...Ch. 17 - A 25.00 mL sample of H2PO4(aq) requires 31.15 mL...Ch. 17 - A 2000 ml sample of H2PO4(aq) requires 18.67 mL...Ch. 17 - Two aqueous solutions are mixed 50.0 mL of 0.0150M...Ch. 17 - Two solutions are mixed 100.0 mL of HCI(aq) with...Ch. 17 - Calculate the pH at the points in the titration of...Ch. 17 - Calculate the pH at the points m the titration...Ch. 17 - Calculate the pH at the points in the titration of...Ch. 17 - Calculate the pH at the points lithe titration of...Ch. 17 - Explain why the volume of 0.100 M NeOH required to...Ch. 17 - Explain whether the equivalence point of each of...Ch. 17 - Sketch the titration curves of the following...Ch. 17 - Determine the blowing characteristeristics of the...Ch. 17 - In the titration of 2000 mL of 0175 M NaOH,...Ch. 17 - In the titration of 25.00mL of 0.100M CH2COOH ,...Ch. 17 - Sketch a titration curve (pH versus mL of titrant)...Ch. 17 - Sketch a titration curve (pH versus mL of titrant)...Ch. 17 - For me titration of 25.00 mL of 0.100M NaOH with...Ch. 17 - For the titration of 25.00 mL 0.100M NH2 with...Ch. 17 - Is a solution that is 0.10 M Na2S(aq) likely to be...Ch. 17 - Is a solution of sodium dihydrogen citrate,...Ch. 17 - Sodium phosphate Na2PO4 , is made commecie1y by...Ch. 17 - Both sodium hydrogen carbonate (sodium...Ch. 17 - The pH of a solution of 19.5 g of malonic acid in...Ch. 17 - The ionization constants of ortho-phthalic acid...Ch. 17 - What stoichimetric concentration of the indicated...Ch. 17 - What stocichiometric concentration of the...Ch. 17 - Using appropriate equilibrium constants but...Ch. 17 - Prob. 62ECh. 17 - Sodium hydrogen sulfate NaHSO4 , an acidic salt...Ch. 17 - You are given 250.0mL of 0.100M CH3 CH2 COOH...Ch. 17 - Even though the carbonic acid-hydrogen carbonate...Ch. 17 - Thymol blue in its acid range is not a suitable...Ch. 17 - Rather than calculate the pH for different volumes...Ch. 17 - Use the method of Exercise 67 to determine the...Ch. 17 - A buffer solution can be prepared by starting with...Ch. 17 - You are asked to prepare a KH2PO4-Na2HPO2 solution...Ch. 17 - You are asked to bring the pH of 0.500 L of 0.500...Ch. 17 - Because an acid-base indicator a weak acid, I can...Ch. 17 - The neutralization of NaOH 2by HCl is represented...Ch. 17 - The titration of a weak acid by a weak base a not...Ch. 17 - At times a salt of a we base can be titrated by a...Ch. 17 - Sulfuric acid is a diprotic acid, strong in the...Ch. 17 - Carbonic acid is a weak diprotic acid (H2CO2) with...Ch. 17 - Prob. 78IAECh. 17 - Complete the derivation of equation (17.10)...Ch. 17 - Explain why equation (17.10) fads when applied to...Ch. 17 - Prob. 81IAECh. 17 - Prob. 82IAECh. 17 - Prob. 83IAECh. 17 - Prob. 84IAECh. 17 - Prob. 85IAECh. 17 - Calculate the pH of a solution that is 0.050 U...Ch. 17 - Prob. 87IAECh. 17 - The Henderson-Hasselbalch equation can be written...Ch. 17 - The pH of ocean water depends on the amount of...Ch. 17 - A sample of water contains 23.0 g L1 of Na+ (aq),...Ch. 17 - Prob. 91IAECh. 17 - Prob. 92FPCh. 17 - In some cases the titration curve for a mature of...Ch. 17 - Amino acids contain both an acidic carboxylic acid...Ch. 17 - In your own words, define or explain the following...Ch. 17 - Prob. 96SAECh. 17 - Explain the important distinctions between each...Ch. 17 - Write equations to show how each of the following...Ch. 17 - Sketch the titration curves that you would expect...Ch. 17 - A 2500-mL sample of 0.0100M C8C5COOH (Kg=6.3103)...Ch. 17 - Prob. 101SAECh. 17 - Prob. 102SAECh. 17 - Prob. 103SAECh. 17 - Prob. 104SAECh. 17 - Prob. 105SAECh. 17 - Calculate the pH of a 0.5 M solution of Ca(HSe)2...Ch. 17 - Prob. 107SAECh. 17 - Prob. 108SAECh. 17 - Prob. 109SAECh. 17 - Prob. 110SAECh. 17 - Prob. 111SAE
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- Explain the difference between a strong acid and a weak acid.arrow_forwardCalculate the pH of solutions that are 0.25 M formic acid and 0.40 M sodium formate. 0.50 M benzoic acid and 0.15 M sodium benzoate.arrow_forwardMark each of the following statements True or False: a. The conjugate base of a strong acid is always a weak base. b. The conjugate acid of a strong base is always a weak acid. c. The stronger the acid, the weaker its conjugate base, and vice versa.arrow_forward
- Write the base ionization constant expression for the ionization of each of the following bases. In each case, the nitrogen atom accepts the proton. a. CH3NH2 (methylamine) b. C2H5NH2 (ethylamine)arrow_forwardHow do the components of a conjugate acid—base pair differ from one another4? Give an example of a conjugate acid—base pair to illustrate your answer.arrow_forwardFormic acid, HCOOH, is found in ants. Write a balanced chemical equation to represent why an aqueous solution of formic acid is acidic.arrow_forward
- For oxyacids, how does acid strength depend on a. the strength of the bond to the acidic hydrogen atom? b. the electronegativity of the element bonded to the oxygen atom that bears the acidic hydrogen? c. the number of oxygen atoms? How does the strength of a conjugate base depend on these factors? What type of solution forms when a nonmetal oxide dissolves in water? Give an example of such an oxide. What type of solution forms when a metal oxide dissolves in water? Give an example of such an oxide.arrow_forward. The concepts of acid-base equilibria were developed in this chapter for aqueous solutions (in aqueous solutions, water is the solvent and is intimately involved in the equilibria). However, the Brønsted-Lowry acid-base theory can be extended easily to other solvents. One such solvent that has been investigated in depth is liquid ammonia. NH3. a. Write a chemical equation indicating how HCl behaves as an acid in liquid ammonia. b. Write a chemical equation indicating how OH- behaves as a base in liquid ammonia.arrow_forwardWrite the acid ionization constant expression for the ionization of each of the following monoprotic acids. a. HCN (hydrocyanic acid) b. HC6H7O6 (ascorbic acid)arrow_forward
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