Which species is the most powerful reducing agent at standard conditions? 2. For

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Which species is the most powerful reducing agent at standard conditions?
2. For this galvanic cell reaction, the Nernst equation implies that the galvanic cell will have a more negative voltage if you: 20. Which species is the most powerful reducing agent at standard conditions? Na (aq) e+Na(s) Fe2+(aq) + 2e- Fe(s) O2(g) + 2H20)40H (aq) 12(s) + 2e- 2I-(aq) E =-271V E -0.45 V E° = 0.40 V E" = 0.54V (A) Na(s) (B) Fe2(a) (C) OH(a) (D) 12(s) 21. For this galvanic cell reaction 3HNO2(aq) +BrOs(aq) 3H+(aq) 3NO,-(aq) + Br(aq) the Nernst equation implies that the galvanic cell will have a more negative voltage if you: (A) increase the pH (B) decrease the Br concentration. (C) increase the BrOs concentration. (D) increase the NO3" concentration.

Explanation / Answer

20) (A) Na(s) isthe most powerful reducing agent.
It readily give electron in the solution to form Na+ ion and reduce other.

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