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Consider the following E ^ values aligned & E _ Fe ³⁺ / Fe ²⁺ ^ =0.77 ~V & E _ Sn ²⁺ / Sn ^ =-0.14 ~V aligned Under standard conditions the potential for the reaction Sn ( s )+2 Fe ³⁺( aq ) 2 Fe ²⁺( aq )+ Sn ²⁺( aq ) is

Options

  1. A1.68 ~V
  2. B0.63 ~V
  3. C0.91 ~V
  4. D1.40 ~V

Correct answer

C. 0.91 ~V

Step-by-step solution

E _ cell = E _ RHS ^ - E _ LHS ^ =(0.77)-(-0.14)=0.91 ~V

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