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Electric Potential and Potential Difference

Estimate the ...

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Estimate the reduction potential for the Cu/Cu+2 electrode, for CuS, Ksp=910to the power - 36and Eo=-0. 34(log3=0.4771)

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Q. Estimate the standard reduction potential for the copper/copper sulphide electrode.

C u S, K_{s p} = 8.5 \times 10^{- 36}, E_{C u | C u^{2 +}}^{⊖} = - 0.34 V

E^{o}

C u / C u S

- x

. Find the value of

x

K_{s p}

C u S = 8.0 \times 10^{- 36}; E_{(C u / C u^{2 +})}^{o} = - 0.34 V; l o g 2 = 0.3; \frac{2.303 R T}{F} = 0.06

Q. The absolute value of standard reduction potential for

C u S | C u

electrode in volts is
Given:

K_{s p}

C u S = 8.0 \times 10^{- 36}; E_{C u | C u^{2 +}}^{o} = - 0.34 V

l o g 2 = 0.3

{C u}^{2 +} + {2 e}^{-} \to C u, E^{o} = + 0.337 V

{C u}^{2 +} + e^{-} \to C u^{+} E^{o} = + 0.153 V

Electrode potential,

E^{0}

for the reaction will be:

{C u}^{+} + e^{-} \to C u

Q. The standard reduction potentials for

C u^{2 +} / C u

C u^{2 +} / C u^{+}

0.337 V

0.153 V

respectively. The standard electrode potential of

C u^{+} / C u

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