SCAN0016 - Ag/AgCl as Reference Electrode Fe” e Fe2t E0 =...

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Unformatted text preview: Ag/AgCl as Reference Electrode Fe” + e' : Fe2t E0 = 0.771V E. = 0,771 —0.05916|09([Fe2+]/[Fea+] AgCI(s) + 9' .—.~ Ag(s) +ci- E0 = 0.222v E, = 0.222— 0.05916 log[Cl'] E“I = (0.771 — 0.05916100([Fez*]I[Fe3‘D — (C! 222 ~ 0 05816 WIT-Ci I) \ ”w E = 4 C 197V in saturated KCl Ecell = (0.771 — 0.05916 iog([Fe2+y[Fe3+])—{0.157v} What could this Cell Measure? Which is the Working Electrode? Em“ = (0.771 — 0.05916 log([Fe2’]/[Fe3*]} — (0.19m This open beaker is inconvenient EOE" = {0.771 — 0.05916 log([Fe2‘]/[Fe3*]}—- {0.19m} ...
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