What is Ecell for the following hypothetical reaction exactly as written (in volts) at T =...

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What is Ecell for the following hypothetical reaction exactly as written (in volts) at T =...

What is E_cell for the following hypothetical reaction exactly as written (in volts) at T = 25°C given the conditions below? Express your answer to 2 decimal places.

X_(s) + Y²⁺_(aq) → X²⁺_(aq) + Y_(s)

E°_cell = -0.90 V

[Y²⁺] = 1.78 mol L^-1

[X²⁺] = 0.008 mol L^-1

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Answer 1

Answer #1

Solution:-

X (s) X²⁺ (aq) + 2e^- (at anode, oxidation)

Y²⁺ (aq) + 2e^- Y (s) (at cathode, reduction)

According to Nernst equation,

(Note :- F (Faraday constant) = 96500 C

R (gas constant) = 8.314 J/K-mol

T (temperature) = 25°C = 298 K

n (number of moles of electrons involved in reaction) = 2 )

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Answer 2

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