20. Solutions can be analyzed for sulfate content using gravimetric analysis by precipitation of sulfate ions as BaSO. (Kip = 1.08x10¹0). If a solution has a [SO] of 2.10x10 M. what [Ba 1, in M, will be required to initiate precipitation? a. 2.10x10¹ b. 5.14x107 C. 2.27x10¹1 d. 1.04x10 441x10³ e
20. Solutions can be analyzed for sulfate content using gravimetric analysis by precipitation of sulfate ions as BaSO. (Kip = 1.08x10¹0). If a solution has a [SO] of 2.10x10 M. what [Ba 1, in M, will be required to initiate precipitation? a. 2.10x10¹ b. 5.14x107 C. 2.27x10¹1 d. 1.04x10 441x10³ e
Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
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Chapter20: Environmental Chemistry-earth's Environment, Energy, And Sustainability
Section: Chapter Questions
Problem 14PS
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Question
Question 20. THIS IS NOT FOR A GRADE!
**It's a practice exam with the answer posted with it!**
I just need help with the concept please explain
![16. What is the Ke expression for the dissolution of nickel (II) phosphate in water?
c. [Ni][PO]
a. [Ni][PO]
[Ni, (PO,);]
b. [NiT [PO
d. [Ni] [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. 8.64x10-21
b. 3.20x107
c. 1.61x10-10
d. 7.57x1017 e. 1.79x10
18. Which of the following correctly ranks the salts in terms of increasing molar solubility?
PbI₂
Kip-9.8x10
Agl
Ksp = 8.5x107
[Ni, (PO₂)₂]
a. TII < Pbl < Agl
b. PbI; <TII < Agl
c. Pbl < Agl< TII
d. Til Agl Pbl₂
e. [Ni,(PO₂) 1¹/
a. 2.45x10³
TII
Kg = 5.5x10
19. In which of the following solutions will cadmium iodate (Cd(10)2. Kip-2.5x105) be the least soluble?
c. Pure water
a. 0.10 M Cd(NO3)2
e. 0.10 M NaCl
b. 0.10 M Nalo,
d. A solution with pH-1
e. Agl<TII <PbI;
20. Solutions can be analyzed for sulfate content using gravimetric analysis by precipitation of sulfate ions as BaSO.
(Kap=1.08x10¹0). If a solution has a [SO] of 2.10x10 M, what (Ba , in M, will be required to initiate
precipitation?
a. 2.10x101 b. 5.14x107 c. 2.27x10¹ d. 1.04x10-5
e. 4.41x10
21. Given the following reactions and equilibrium constants:
Ag,CO₂ (s) 2Ag (aq) + CO (ag)
[Ag(NH₂),](aq) Ag (ag) 2NII, (ag)
Kp 8.46-10-12
K₁=5.88-108
Calculate the value of Ke for the reaction of silver carbonate with ammonia to form the silver ammine complex:
Ag,CO;( )+ (NH,(@q) = 2[Ag(NH;);) (@q) +CO (aq)
b. 4.97x10-19 c. 1.44x10+ d. 2.92x1026 e. 1.18x107
d. 5
22. Given the unbalanced equation V₂O + W VO+WO,, when the overall reaction equation is balanced in
acidic solution, what will the coefficient of H₂O(/) be?
a. 2
b. 3
c. 4
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%2F95890d7f-1bd0-4290-9b1a-92bedf38fd58%2Fhvnorcj_processed.jpeg&w=3840&q=75)
Transcribed Image Text:16. What is the Ke expression for the dissolution of nickel (II) phosphate in water?
c. [Ni][PO]
a. [Ni][PO]
[Ni, (PO,);]
b. [NiT [PO
d. [Ni] [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. 8.64x10-21
b. 3.20x107
c. 1.61x10-10
d. 7.57x1017 e. 1.79x10
18. Which of the following correctly ranks the salts in terms of increasing molar solubility?
PbI₂
Kip-9.8x10
Agl
Ksp = 8.5x107
[Ni, (PO₂)₂]
a. TII < Pbl < Agl
b. PbI; <TII < Agl
c. Pbl < Agl< TII
d. Til Agl Pbl₂
e. [Ni,(PO₂) 1¹/
a. 2.45x10³
TII
Kg = 5.5x10
19. In which of the following solutions will cadmium iodate (Cd(10)2. Kip-2.5x105) be the least soluble?
c. Pure water
a. 0.10 M Cd(NO3)2
e. 0.10 M NaCl
b. 0.10 M Nalo,
d. A solution with pH-1
e. Agl<TII <PbI;
20. Solutions can be analyzed for sulfate content using gravimetric analysis by precipitation of sulfate ions as BaSO.
(Kap=1.08x10¹0). If a solution has a [SO] of 2.10x10 M, what (Ba , in M, will be required to initiate
precipitation?
a. 2.10x101 b. 5.14x107 c. 2.27x10¹ d. 1.04x10-5
e. 4.41x10
21. Given the following reactions and equilibrium constants:
Ag,CO₂ (s) 2Ag (aq) + CO (ag)
[Ag(NH₂),](aq) Ag (ag) 2NII, (ag)
Kp 8.46-10-12
K₁=5.88-108
Calculate the value of Ke for the reaction of silver carbonate with ammonia to form the silver ammine complex:
Ag,CO;( )+ (NH,(@q) = 2[Ag(NH;);) (@q) +CO (aq)
b. 4.97x10-19 c. 1.44x10+ d. 2.92x1026 e. 1.18x107
d. 5
22. Given the unbalanced equation V₂O + W VO+WO,, when the overall reaction equation is balanced in
acidic solution, what will the coefficient of H₂O(/) be?
a. 2
b. 3
c. 4
e. There is no H₂O in the balanced equation
Transcribed Image Text:um 1
O₂(
13
Pre
en
Answer Section
MULTIPLE CHOICE
1. ANS: E
2.
ANS: E
3.
ANS: B
4.
ANS: A
5.
ANS: D
6.
ANS: B
7. ANS: A
8.
ANS: E
9.
ANS: B
10.
ANS: D
11. ANS: B
12. ANS: E
13. ANS: A
14.
ANS: A
15. ANS: A
16. ANS: D
17.
ANS: A
18. ANS: E
19. ANS: B
20. ANS: B
21. ANS: A
22. ANS: C
23. ANS: C
24. ANS: C
25. ANS: C
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