Where on Figure 20.14 would you find (a) the chemical species that is the easies

Question

Where on Figure 20.14 would you find (a) the chemical species that is the easiest to oxidize, and (b) the chemical species that is the easiest to reduce? 20.6 For the generic reaction A(aq) + B(aq) rightarrow A^-(aq) + B^+(aq) for which Edegree is a positive number, answer the following questions: (a) What is being oxidized, and what is being reduced? (b) If you made a voltaic cell out of this reaction, what half-reaction would be occurring at the cathode, and what half-reaction would be occurring at the anode? (c) Which half-reaction from (b) is higher in potential energy? (d) What is the sign of the free energy change for the reaction?

Explanation / Answer

a) “B” is being oxidised and “A” is being reduced

b) At anode: B(aq) è B+(aq) + e-……..1

At cathode: A(aq) + e- è A-(aq)……..2

c) Half-reaction 1 is higher in potential energy

d) It should be –Ve if the reaction is spontaneous.

(since sections 20.4 and 20.5 are not visible, there might be misleading in answer for d) )

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.