21. Given the following reactions and equilibrium constants: Ag, CO, (s) 2Ag (aq) + CO2(aq) [Ag(NH₂)₂] (aq) Ag (aq) + 2NH, (aq) Calculate the value of K. for the reaction of silver carbonate with ammonia to form the silver ammine complex: Ag,CO,(s) + 4NH;(aq) = 2[Ag(NH,) | (@g) +CO] (aq) 1.44x10+ d. 2.92x10- e. 1.18x10 a. 2.45x10¹ b. 4.97x1019 Kip-8.46-10-12 K₁=5.88-108 C.
21. Given the following reactions and equilibrium constants: Ag, CO, (s) 2Ag (aq) + CO2(aq) [Ag(NH₂)₂] (aq) Ag (aq) + 2NH, (aq) Calculate the value of K. for the reaction of silver carbonate with ammonia to form the silver ammine complex: Ag,CO,(s) + 4NH;(aq) = 2[Ag(NH,) | (@g) +CO] (aq) 1.44x10+ d. 2.92x10- e. 1.18x10 a. 2.45x10¹ b. 4.97x1019 Kip-8.46-10-12 K₁=5.88-108 C.
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...
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Question 21. Practice exam. Will post the answer, just need help with the concept so please explain. Thank you!
Transcribed Image Text:1.
ANS: E
2.
ANS: E
3. ANS: B
4.
ANS: A
5.
ANS: D
ANS: B
ANS: A
ANS: E
6.
7.
8.
9.
ANS: B
10.
ANS: D
11. ANS: B
12. ANS: E
13. ANS: A
14.
ANS: A
15. ANS: A
ANS: D
ANS: A
18.
ANS: E
19.
ANS: B
20. ANS: B
16.
17.
21. ANS: A
22. ANS: C
23. ANS: C
24. ANS: C
25. ANS: C
![16. What is the K, expression for the dissolution of nickel (II) phosphate in water?
a. [N][PO]
c. [N][PO]
[Ni, (PO₂)₂]
b. [NiT [PO
d. [NiT [PO]
17. Solid yttrium fluoride (YF:) is added to pure water until the solution becomes saturated. The [Y] in the saturated
solution is found to be 4.23 x10 M. What is the value of K for YF?
a. 8.64x10
b.
3.20x10
c. 1.61x10
d. 7.57x10-17
e. 1.79x10-11
18. Which of the following correctly ranks the salts in terms of increasing molar solubility?
[Ni,(PO4)₂]
Pbl
K=9.8x10
a. TII<Pbl < Agl
b. Pbl <TII < Agl
Agt
Kip-8.5x10-17
a. 2.45x10³
c. Pbl: <Agl<TII
d. TII Agl< Pbl₂
b. 4.97x1019
e. (Ni,(PO₂):1/
19. In which of the following solutions will cadmium iodate (Cd(103)2, Kp = 2.5x105) be the least soluble?
e. 0.10 M NaCl
a. 0.10 M Cd(NO₂)2
b. 0.10 M NalO;
c. Pure water
d. A solution with pH = 1
TII
Kp = 5.5x108
20. Solutions can be analyzed for sulfate content using gravimetric analysis by precipitation of sulfate ions as BaSO
(K=1.08x100). If a solution has a [SO] of 2.10x10 M, what [Ba], in M, will be required to initiate
precipitation?
a. 2.10x10
b. 5.14x10
d. 1.04x10-5
e. 4.41x10³
c. 2.27x10¹
21. Given the following reactions and equilibrium constants:
e. Agl<TII < Pbl₂
Ag, CO, (s) = 2Ag (ag) + CO (aq)
[Ag(NH₂),] (aq) = Ag (aq) + 2NH₂(aq)
Calculate the value of Ke for the reaction of silver carbonate with ammonia to form the silver ammine complex:
Ag,CO,(s)+4NH, (aq) = 2[Ag(NH;) ] (@g)+CO} (aq)
c. 1.44x10+
d. 2.92x10-26 e.
1.18x10²
22. Given the unbalanced equation V,05 + W VO+WO₂,
acidic solution, what will the coefficient of H₂O(l) be?
a. 2
b. 3
Kp -8.46-10-12
K₁=5.88-10-8
when the overall reaction equation is balanced in
d. S e. There is no H₂O in the balanced equation](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F43965b80-42e8-41df-9b51-2c2200725cfe%2F1282e0ec-126e-4bc3-8987-50e230762193%2Ft8659ua_processed.jpeg&w=3840&q=75)
Transcribed Image Text:16. What is the K, expression for the dissolution of nickel (II) phosphate in water?
a. [N][PO]
c. [N][PO]
[Ni, (PO₂)₂]
b. [NiT [PO
d. [NiT [PO]
17. Solid yttrium fluoride (YF:) is added to pure water until the solution becomes saturated. The [Y] in the saturated
solution is found to be 4.23 x10 M. What is the value of K for YF?
a. 8.64x10
b.
3.20x10
c. 1.61x10
d. 7.57x10-17
e. 1.79x10-11
18. Which of the following correctly ranks the salts in terms of increasing molar solubility?
[Ni,(PO4)₂]
Pbl
K=9.8x10
a. TII<Pbl < Agl
b. Pbl <TII < Agl
Agt
Kip-8.5x10-17
a. 2.45x10³
c. Pbl: <Agl<TII
d. TII Agl< Pbl₂
b. 4.97x1019
e. (Ni,(PO₂):1/
19. In which of the following solutions will cadmium iodate (Cd(103)2, Kp = 2.5x105) be the least soluble?
e. 0.10 M NaCl
a. 0.10 M Cd(NO₂)2
b. 0.10 M NalO;
c. Pure water
d. A solution with pH = 1
TII
Kp = 5.5x108
20. Solutions can be analyzed for sulfate content using gravimetric analysis by precipitation of sulfate ions as BaSO
(K=1.08x100). If a solution has a [SO] of 2.10x10 M, what [Ba], in M, will be required to initiate
precipitation?
a. 2.10x10
b. 5.14x10
d. 1.04x10-5
e. 4.41x10³
c. 2.27x10¹
21. Given the following reactions and equilibrium constants:
e. Agl<TII < Pbl₂
Ag, CO, (s) = 2Ag (ag) + CO (aq)
[Ag(NH₂),] (aq) = Ag (aq) + 2NH₂(aq)
Calculate the value of Ke for the reaction of silver carbonate with ammonia to form the silver ammine complex:
Ag,CO,(s)+4NH, (aq) = 2[Ag(NH;) ] (@g)+CO} (aq)
c. 1.44x10+
d. 2.92x10-26 e.
1.18x10²
22. Given the unbalanced equation V,05 + W VO+WO₂,
acidic solution, what will the coefficient of H₂O(l) be?
a. 2
b. 3
Kp -8.46-10-12
K₁=5.88-10-8
when the overall reaction equation is balanced in
d. S e. There is no H₂O in the balanced equation
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