42. Cadmium sulfide, CdS, is an insoluble substance with a Ksp of 1.0 X 10º. It dissociates in water according to the following equation: Cds (s) = Cd?+ (aq) + S2 (aq) %3D What is the concentration of the Cd2+ jon in a saturated solution of CdS? A) 1.0 X 1028 B) 1.0 X 10-21 C) 1.0 X 1014 D) 1.0 X 107

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
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
icon
Related questions
icon
Concept explainers
Question
42. Cadmium sulfide, CdS, is an insoluble substance with a Ksp of 1.0 X 10". It
dissociates in water according to the following equation:
CdS (s) = Cd2+ (ag) + S2- (aq)
What is the concentration of the Cd2+ jon in a saturated solution of CdS?
A) 1.0 X 1028
B) 1.0 X 10-21
C) 1.0 X 1014
D) 1.0 X 107
43. BaF2 is very slightly soluble in water with a Ksp = 2.4 X 10$. Which of the
following statements is correct?
A) BaF2 would be less soluble in 0.10 M NaF than in water.
B) BaF2 would have the same solubility in 0.10 M NaF and in water.
C) BaF2 would be more soluble in 0.10 M NaF than in water.
D) There is no way to compare the solubility of BaF2 in water and in 0.10 M NaF.
44. If the reaction A+ B = C has an equilibrium constant greater than 1, which of
the following statements is correct concerning the forward reaction?
A) The forward reaction is not thermodynamically favored and would be
considered non-spontaneous.
B) The forward reaction rate is fast.
C) The forward reaction is slow.
D) The forward reaction is thermodynamically favored and would be considered
spontaneous.
Transcribed Image Text:42. Cadmium sulfide, CdS, is an insoluble substance with a Ksp of 1.0 X 10". It dissociates in water according to the following equation: CdS (s) = Cd2+ (ag) + S2- (aq) What is the concentration of the Cd2+ jon in a saturated solution of CdS? A) 1.0 X 1028 B) 1.0 X 10-21 C) 1.0 X 1014 D) 1.0 X 107 43. BaF2 is very slightly soluble in water with a Ksp = 2.4 X 10$. Which of the following statements is correct? A) BaF2 would be less soluble in 0.10 M NaF than in water. B) BaF2 would have the same solubility in 0.10 M NaF and in water. C) BaF2 would be more soluble in 0.10 M NaF than in water. D) There is no way to compare the solubility of BaF2 in water and in 0.10 M NaF. 44. If the reaction A+ B = C has an equilibrium constant greater than 1, which of the following statements is correct concerning the forward reaction? A) The forward reaction is not thermodynamically favored and would be considered non-spontaneous. B) The forward reaction rate is fast. C) The forward reaction is slow. D) The forward reaction is thermodynamically favored and would be considered spontaneous.
39. You make a buffer which is 0.50 molar in HE and 0.20 M in the F ion. What is
the pH of the buffer? The Ka of HF is 6.4 X 104.
A) 3.19
B) 0.30
C) 2.50
D) 2.80
40. You mix 50.0 mL of 0.10 M HCI with 40.0 mL of 0.10 M NaOH. What do you
know about the final mixture?
A) It will be acidic and have a pH <7.
B) It will be basic and have a pH < 7.
C) It will be acidic and have a pH > 7.
D) It will be acidic and have pH > 7.
41. Bismuth sulfide, BizS3, is an insoluble compound. It dissociates in water
following the equation:
BizS3 (s) = 2 Bi3+ (aq) + 3 S2 (aq)
What is the expression for the Ksp of this substance?
[Bi3+]?[S?-]3
A) ksp
[BizS3]
B) ksp = [Bi3+]³[S²-1?
%3D
C) ksp = [Bi³+]²[S²-13
%3D
D) ksp = [Bi³+][S²-)
Transcribed Image Text:39. You make a buffer which is 0.50 molar in HE and 0.20 M in the F ion. What is the pH of the buffer? The Ka of HF is 6.4 X 104. A) 3.19 B) 0.30 C) 2.50 D) 2.80 40. You mix 50.0 mL of 0.10 M HCI with 40.0 mL of 0.10 M NaOH. What do you know about the final mixture? A) It will be acidic and have a pH <7. B) It will be basic and have a pH < 7. C) It will be acidic and have a pH > 7. D) It will be acidic and have pH > 7. 41. Bismuth sulfide, BizS3, is an insoluble compound. It dissociates in water following the equation: BizS3 (s) = 2 Bi3+ (aq) + 3 S2 (aq) What is the expression for the Ksp of this substance? [Bi3+]?[S?-]3 A) ksp [BizS3] B) ksp = [Bi3+]³[S²-1? %3D C) ksp = [Bi³+]²[S²-13 %3D D) ksp = [Bi³+][S²-)
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Knowledge Booster
Ionic Equilibrium
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
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY