At the equivalence point, the following titrations (just a mixture of two solutions) give either acidic or basic solutions. mixture Type of solution Relevant K values а. NaOH + HCN basic K, of HCN = 4.9 x 10-10 b. NaOH + HNO2 basic Ka of HNO2 4.0 x 10-4 %3D c. HCI + NH3 acidic K, of NH3 = 1.8 x 10-5 %3D For each mixture, (1) write the major species present at the equivalence point, and (2) equilibrium reaction that produces the acidic or basic solution.

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter15: Acid-base Equilibria
Section: Chapter Questions
Problem 7RQ: Sketch the titration curve for a weak acid titrated by a strong base. When performing calculations...
icon
Related questions
Question
At the equivalence point, the following titrations (just a
mixture of two solutions) give either acidic or basic solutions.
mixture
Type of solution
Relevant K values
а. NaOH + HCN
basic
K, of HCN = 4.9 x 10-10
b. NaOH + HNO2
basic
Ka of HNO2 = 4.0 x 10-4
c. HCI + NH3
acidic
K, of NH3 = 1.8 x 10-5
For each mixture, (1) write the major species present at the equivalence point, and (2)
equilibrium reaction that produces the acidic or basic solution.
mixture
(1) Major species
present at eq. pt. after
the two species react
(don't include water)
(2) Equilibrium reaction with water (exclude
spectator ions that don't participate in the reaction)
NOTE: This reaction predicts the pH of the solution.
а. NaOH + HCN
b. NaOH + HNO2
c. HCI + NH3
Rank the solutions from lowest pH to highest pH, assuming the total volume and molarities
of products is the same.
Lowest pH
Highest pH
Transcribed Image Text:At the equivalence point, the following titrations (just a mixture of two solutions) give either acidic or basic solutions. mixture Type of solution Relevant K values а. NaOH + HCN basic K, of HCN = 4.9 x 10-10 b. NaOH + HNO2 basic Ka of HNO2 = 4.0 x 10-4 c. HCI + NH3 acidic K, of NH3 = 1.8 x 10-5 For each mixture, (1) write the major species present at the equivalence point, and (2) equilibrium reaction that produces the acidic or basic solution. mixture (1) Major species present at eq. pt. after the two species react (don't include water) (2) Equilibrium reaction with water (exclude spectator ions that don't participate in the reaction) NOTE: This reaction predicts the pH of the solution. а. NaOH + HCN b. NaOH + HNO2 c. HCI + NH3 Rank the solutions from lowest pH to highest pH, assuming the total volume and molarities of products is the same. Lowest pH Highest pH
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps

Blurred answer
Knowledge Booster
Acid-Base Titrations
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
  • SEE MORE QUESTIONS
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry: An Atoms First Approach
Chemistry: An Atoms First Approach
Chemistry
ISBN:
9781305079243
Author:
Steven S. Zumdahl, Susan A. Zumdahl
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781133611097
Author:
Steven S. Zumdahl
Publisher:
Cengage Learning
Principles of Modern Chemistry
Principles of Modern Chemistry
Chemistry
ISBN:
9781305079113
Author:
David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:
Cengage Learning
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Chemistry: The Molecular Science
Chemistry: The Molecular Science
Chemistry
ISBN:
9781285199047
Author:
John W. Moore, Conrad L. Stanitski
Publisher:
Cengage Learning