Solve
Guides
0
You visited us 0 times! Enjoying our articles? Unlock Full Access!
Standard XII
Chemistry
Question

Find the potential of a half-cell having reaction, Ag2S+2e→2Ag+S2− in a solution buffered
pH=3 and which is also saturated with 0.1 M H2S. For H2S: K1=10−8 and K2=2×10−13, Ksp(Ag2S)=2×10−48, EoAg,ag=0.8
  1. 0.432 V
  2. 1.658 V
  3. −0.245 V
  4. −0.144 V

A
0.432 V
B
1.658 V
C
−0.245 V
D
−0.144 V
Open in App
Solution
Verified by Toppr

Was this answer helpful?
0
Similar Questions
Q1
Find the potential of a half-cell having reaction, Ag2S+2e→2Ag+S2− in a solution buffered
pH=3 and which is also saturated with 0.1 M H2S. For H2S: K1=10−8 and K2=2×10−13, Ksp(Ag2S)=2×10−48, EoAg,ag=0.8
View Solution
Q2
Find the potential of a half - cell that has the reaction, Ag2S+2e−→2Ag+S2− in a solution buffered at pH = 3 and which is also saturated with 0.1 M H2S.
For H2S:K1=10−8 and K2=2×10−13, Ksp(Ag2S)=2×10−48, E0Ag+|Ag=0.8 V
View Solution
Q3
Calculate the half cell potential of a reaction $$ Ag_2S + 2e \rightarrow 2Ag + S^{2-} $$ ina solution buffered at $$pH = 3 $$ and also saturated with $$ 0.1\,M \,H_2S . K_1 $$ and $$ K_2 $$ for $$ H_2S $$ are $$ 10^{-8} $$ and $$ 1.1 \times 10^{-13} $$ respectively .
$$ K_{SP_{Ag_2S}} = 2 \times 10^{-49} , E^{\circ} _{Ag^+/Ag} = 0.8\,V $$ .
View Solution
Q4
The electrode potential (in millivolts) of $$ 2Ag(s)+S^{2-}(aq) \rightarrow Ag_{2}S(s)+2e^{-}$$ in a solution buffered at pH = 3 and which is also saturated with $$0.1 M H_{2}S,$$ is
(Given : for $$ H_{2}S, K_{a1} = 10^{-8}, K_{a2} = 10^{-13}, K_{sp}$$ of $$Ag_{2}S = 4 \times 10^{-48}, E_{Ag|Ag}^{+} = 0.80 V, log 2 = 0.3, 2.303 RT/F = 0.06)$$
View Solution
Q5
Calculate the potential of a half cell having reaction: Ag2S(s)+2e−⇌2Ag(s)+S2−(aq) in a solution buffered at pH=3 and which is also saturated with 0.1 M H2S(aq):
[Given: Ksp(Ag2S)=10−49, Ka1.Ka2=10−21]
View Solution