The E0 reduction for Cu - CuS electrode is - x- Find the value of x- Given- K sp for CuS -8-0 - 10-36 - E Cu - Cu 2-0-0-34 V - log 2-0-3 - 2-303 RT - F -0-06

Anode: nbsp; Cu ⇌ Cu^2++2e^ Cathode:CuS + 2e^ ⇌ Cu+S^2 Cell reaction:CuS nbsp; ⇌ nbsp; Cu^2+ +S^2 Cell is in equilibrium, therefore nbsp;E_cell=0 ∴ ...

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Chemistry

Electrode Potential

The E0 reduct...

Question

The $E^{o}$ reduction for $C u / C u S$ electrode is $- x$ . Find the value of $x$ .
(Given: $K_{s p}$ for $C u S = 8.0 \times 10^{- 36}; E_{(C u / C u^{2 +})}^{o} = - 0.34 V; l o g 2 = 0.3; \frac{2.303 R T}{F} = 0.06$ )

Open in App

Solution

$A n o d e : C u ⇌ C u^{2 +} + 2 e^{-}$
$C a t h o d e : C u S + 2 e^{-} ⇌ C u + S^{2 -}$
$C e l l r e a c t i o n : C u S ⇌ C u^{2 +} + S^{2 -}$

Cell is in equilibrium, therefore $E_{c e l l} = 0$
$∴ E_{c e l l} = E_{c e l l}^{o} - \frac{0.06}{2} l o g K_{s p}$

$E_{C u / C u S}^{o} - 0.34 = - 1.053$
$E_{C u / C u S}^{o} = - 0.713 V$

Suggest Corrections

Similar questions

Q. The

E^{o}

reduction for

C u / C u S

electrode is

- x

. Find the value of

x

.
(Given:

K_{s p}

for

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

.
(take

l o g 2 = 0.3

)

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

For

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

Q. 1.

C u^{2 +} + 2 e^{-} ⟶ C u

E^{0} = 0.337 V

C u^{2 +} + e^{-} ⟶ C u^{+}

E^{0} = 0.153 V

Electrode potential,

E^{0}

for the reaction

C u^{+} + e^{-} ⟶ C u

Q. Given (i)

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

(ii)

{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

Join BYJU'S Learning Program

The Eo reduction for Cu/CuS electrode is −x. Find the value of x. (Given: Ksp for CuS=8.0×10−36;Eo(Cu/Cu2+)=−0.34 V;log 2=0.3;2.303RTF=0.06)

Anode:Cu⇌Cu2++2e− Cathode:CuS+2e−⇌Cu+S2− Cell reaction:CuS⇌Cu2++S2− Cell is in equilibrium, therefore Ecell=0 ∴Ecell=Eocell−0.062log Ksp EoCu/CuS−0.34=−1.053 EoCu/CuS=−0.713 V

The $E^{o}$ reduction for $C u / C u S$ electrode is $- x$ . Find the value of $x$ .
(Given: $K_{s p}$ for $C u S = 8.0 \times 10^{- 36}; E_{(C u / C u^{2 +})}^{o} = - 0.34 V; l o g 2 = 0.3; \frac{2.303 R T}{F} = 0.06$ )