2 Ag" (ag) + Zn(8) Under standard conditions, the galvanic cell shown above has a cell potential of +1.56 V using the reaction given. The salt bridge contains KNO3, which allows K* ions and NO, ions in the directions indicated. If KNO3 in the salt bridge is replaced with KOH, some Zn(OH),(s) precipitates in the Zn-Zn(NO,), half-cell. Which of the following best explains how the e potential is affected as Zn(OH),(s) starts to precipitate, and why? The cell potential increases because the concentration of Zn2+(ag) decreases and Q. Zn becomes smaller. A Ag

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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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1 M Zn(NO)2
1 M AGNO3
2 Ag+ (ag) + Zn(s) → 2 Ag(s) + Zn2+(aq)
Under standard conditions, the galvanic cell shown above has a cell potential of +1.56 V using the reaction given. The salt bridge contains KNO3, which allows K+ ions and NO3 ions to move
in the directions indicated. If KNO3 in the salt bridge is replaced with KOH, some Zn(OH),(s) precipitates in the Zn-Zn(NO,), half-cell. Which of the following best explains how the cell
potential is affected as Zn(OH), (s) starts to precipitate, and why?
The cell potential increases because the concentration of Zn2+(ag) decreases and Q.
Ag""
Zn
,becomes smaller.
A
Su
Zn1
becomes smaller.
Ag
The cell potential decreases because the concentration of Zn²+ (ag) decreases and Q.
The cell potential increases because Kt ions replace Zn+ ions and the reduction of K is more thermodynamically favored than the reduction of Zn2+
D
The cell potential stays the same because Zn(OH), (s) is not part of the redox reaction responsible for the operation of the galvanic cell.
US
V O 5:4
Transcribed Image Text:14 16 21 26 « < 26 of: 1 M Zn(NO)2 1 M AGNO3 2 Ag+ (ag) + Zn(s) → 2 Ag(s) + Zn2+(aq) Under standard conditions, the galvanic cell shown above has a cell potential of +1.56 V using the reaction given. The salt bridge contains KNO3, which allows K+ ions and NO3 ions to move in the directions indicated. If KNO3 in the salt bridge is replaced with KOH, some Zn(OH),(s) precipitates in the Zn-Zn(NO,), half-cell. Which of the following best explains how the cell potential is affected as Zn(OH), (s) starts to precipitate, and why? The cell potential increases because the concentration of Zn2+(ag) decreases and Q. Ag"" Zn ,becomes smaller. A Su Zn1 becomes smaller. Ag The cell potential decreases because the concentration of Zn²+ (ag) decreases and Q. The cell potential increases because Kt ions replace Zn+ ions and the reduction of K is more thermodynamically favored than the reduction of Zn2+ D The cell potential stays the same because Zn(OH), (s) is not part of the redox reaction responsible for the operation of the galvanic cell. US V O 5:4
Voltmeter
Wire
+1.56 V
NO3
K*
Zn
Ag
1 M Zn(NO3)2
1 M AGNO3
2 Ag (aq) + Zn(s) → 2 Ag(s) + Zn²+(aq)
tions, the galvanic cell shown above has a cell potential of +1.56 V using the reaction given. The salt bridge contains KNO,, which allows K ions
ated. If KNO3 in the salt bridge is replaced with KOH, some Zn(OH), (s) precipitates in the Zn-Zn(NO,), half-cell. Which of the following best
Transcribed Image Text:Voltmeter Wire +1.56 V NO3 K* Zn Ag 1 M Zn(NO3)2 1 M AGNO3 2 Ag (aq) + Zn(s) → 2 Ag(s) + Zn²+(aq) tions, the galvanic cell shown above has a cell potential of +1.56 V using the reaction given. The salt bridge contains KNO,, which allows K ions ated. If KNO3 in the salt bridge is replaced with KOH, some Zn(OH), (s) precipitates in the Zn-Zn(NO,), half-cell. Which of the following best
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