504NernstEqn

504NernstEqn - Example 1 In a galvanic cell, one half-cell...

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Lesson 24 1 Lesson 24 Example 1 In a galvanic cell, one half-cell consists of a zinc strip dipped into a 1.0 M solution of Zn(NO 3 ) 2 . In the second half-cell, solid indium adsorbed on graphite is in contact with a 1.0 M solution of In(NO 3 ) 3 . Indium is observed to plate out as the galvanic cell operates, and the initial cell voltage is measured to be 0.425 V at 25 o C. (a) Write a balanced equation for the half-reactions at the anode and the cathode. (b) Calculate the standard reduction potential of an In3 + |In half-cell. Lesson 24 Example 2 Compare the half cell potential values for Fe 3+ to Fe 2+ and Fe(CN) 6 3– to Fe(CN) 6 4– . On this basis, which ion, Fe 3+ or Fe 2+ , forms a stronger complex with CN ? Lesson 24 Example 3 Bromine is sometimes used in place of chlorine as a disinfectant in swimming pools. If the effectiveness of a chemical as a disinfectant depends solely on its strength as an oxidizing agent, do you expect bromine to be better or worse than chlorine as a disinfectant, at a given concentration?
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504NernstEqn - Example 1 In a galvanic cell, one half-cell...

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