Consider the cell shown in diagram 2. What would happen to the cell potential if
ID: 533309 • Letter: C
Question
Consider the cell shown in diagram 2.
What would happen to the cell potential if 1M KNO3 was added to the silver solution? Note that AgNO3 is soluble.
No change, as AgNO3 is soluble
Decrease, due to precipitation
Decrease, due to the increase in overall ionic strength of the solution.
Increase due to complexation of the nitrate ion
1.No change, as AgNO3 is soluble
2.Decrease, due to precipitation
3.Decrease, due to the increase in overall ionic strength of the solution.
4.Increase due to complexation of the nitrate ion
Diagram 2 Pt, H2 IH* II Ag I Ag (1atm) (1M) (0.01M)Explanation / Answer
The correct answer is 3.
Overall ionic strength will increase, and thus the concn. Of Ag+ ions will decrease..
Since E= E°- 2.3RT/ F Log [H+]/ [Ag+]
As the concn of Ag+ will decrease, thus the potential will also decrease.