Do you want to install the updates now? CollegeBoard AP Classroom Unit 9 Progress Check: MCQ 15 16 23 24 « < 23 of 30 > 0.47 V NO, K+ Pb. Cu Submi 1.0 M Pb(NO3)2 1.0 M Cu(NO3)2 from identical half-cells but uses NaNO, for the salt bridge. Which of the following best The galvanic cell illustrated above was constructed using a salt bridge containing KNO3. A second cell is const explains whether the initial potential of the second cell will be different from the initial potential of the first cell? The initial potential of the second cell will be lower than the initial potential of the first cell because Na has a lower molar mass than K has. B The initial potential of the second cell will be higher than the initial potential of the first cell because Na is less electronegative than K is The initial potential of the second cell will be the same as the first cell because the ions from the salt bridge are not oxidized or reduced during cell operation. D The initial potential of the second cell will be the same as the first cell because the standard reduction potentials of Group 1 metals are very similar. Q Search or enter website name esc

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Unit 9 Progress Check: MCQ
13
14
15
16
23
24
« < 23 of 30 >
0.47 V
NO3
K+
Pb.
Cu
Submit
1.0 M Pb(NO3)2-
-1.0 M Cu(NO3)2
The galvanic cell illustrated above was constructed using a salt bridge containing KNO3. A second cell is constructed from identical half-cells but uses NaNO, for the salt bridge. Which of the following best
explains whether the initial potential of the second cell will be different from the initial potential of the first cell?
A
The initial potential of the second cell will be lower than the initial potential of the first cell because Na has a lower molar mass than K has.
B
The initial potential of the second cell will be higher than the initial potential of the first cell because Na is less electronegative than K is.
The initial potential of the second cell will be the same as the first cell because the ions from the salt bridge are not oxidized or reduced during cell operation.
D
The initial potential of the second cell will be the same as the first cell because the standard reduction potentials of Group 1 metals are very similar.
Q Search or enter website name
esc
%
Transcribed Image Text:日く A apclassroom.collegeboard.org A UPDATES AVAILABLE 29m ago Do you want to install the updates now? CollegeBoard AP'Classroom Unit 9 Progress Check: MCQ 13 14 15 16 23 24 « < 23 of 30 > 0.47 V NO3 K+ Pb. Cu Submit 1.0 M Pb(NO3)2- -1.0 M Cu(NO3)2 The galvanic cell illustrated above was constructed using a salt bridge containing KNO3. A second cell is constructed from identical half-cells but uses NaNO, for the salt bridge. Which of the following best explains whether the initial potential of the second cell will be different from the initial potential of the first cell? A The initial potential of the second cell will be lower than the initial potential of the first cell because Na has a lower molar mass than K has. B The initial potential of the second cell will be higher than the initial potential of the first cell because Na is less electronegative than K is. The initial potential of the second cell will be the same as the first cell because the ions from the salt bridge are not oxidized or reduced during cell operation. D The initial potential of the second cell will be the same as the first cell because the standard reduction potentials of Group 1 metals are very similar. Q Search or enter website name esc %
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