Part of PC-07 — Redox Reactions & Electrochemistry

Redox Reactions & Electrochemistry: 5-Bullet Final Revision

by Notetube Officialkey_points summary100 words3 views
  • Cell EMF: E°cell = E°cathode − E°anode (cathode minus anode); E°cell > 0 → spontaneous (ΔG\Delta G° < 0); Daniell cell: E°cell = 0.34 − (−0.76) = 1.10 V.
  • Nernst equation: E = E° − (0.0592/n) log Q at 25°C; at equilibrium E = 0 → E° = (0.0592/n) log K; ΔG\Delta G° = −nFE°; F = 96500 C/mol.
  • Faraday's law: w = MIt/(nF); t in seconds; n = 1 (Ag+Ag^{+}), n = 2 (Cu2+Cu^{2+}, Zn2+Zn^{2+}), n = 3 (Al3+Al^{3+}); 2 A × 1 hr through CuSO4CuSO_{4} deposits 2.37 g Cu.
  • Conductance: Λm = Λ°m − A√C (strong); α = Λm/Λ°m (weak); Kohlrausch: Λ°m(CH3COOHCH_{3}COOH) = Λ°m(CH3COONaCH_{3}COONa) + Λ°m(HCl) − Λ°m(NaCl).
  • Cell polarity trap: Anode = NEGATIVE in galvanic; Anode = POSITIVE in electrolytic. In BOTH: oxidation at anode, reduction at cathode ("AN OX RED CAT").

Want to generate AI summaries of your own documents? NoteTube turns PDFs, videos, and articles into study-ready summaries.

Sign up free to create your own