Question

The EMF of the cell: Hg(l) I Hg 2 Cl (s), KCI sol. (1 N) I Quinohydrone I Pt, is 0.210 V at 298 K. What is the pH of the quinhydrone solution, the potential of the normal calomel electrode is 0.279 V and E° for the quinhydrone electrode is 0.699 V, both at the same temperature. [2.303RT/F= 0.06] 2
(A) 3.5 (B) 7.0
(C) 1.85 (D) –3.5

Answer 1

Answer:

used in conjunction with a saturated calomel electrode, as represented below

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at

. Calculate the

of unknown solution at this temperature. <br> answer a mark as brainliest and follow mee