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Standard emf of a cell and the equilibrium constant from each other

This type of question, asked 2 times: 26 Apr 2025 S1, 18 Apr 2026 S1. All 2 questions below, oldest first.

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  1. Question 1

    26 Apr 2025 S1

    89
    For the cell reaction, A(s)+B(aq)+2⟶ A(aq)+2+B(s)A_{(s)}+B_{(aq)}^{+ 2}\longrightarrow{\text{ }A}_{(aq)}^{+ 2}+B_{(s)} if equilibrium constant of reaction is 10410^{4} at 298 K . What is standard emf of cell?

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  2. Question 2

    18 Apr 2026 S1

    25
    For a certain redox reaction in galvanic cell X(s)+Y(aq)2+⟶X(aq)2++Y(s)\mathrm{X_{(s)} + Y^{2+}_{(aq)} \longrightarrow X^{2+}_{(aq)} + Y_{(s)}}, E∘\mathrm{E^\circ} cell is 0.02960.0296 V at 298298 K. What is equilibrium constant of reaction?

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