CHEM 120 Lecture Notes - Lecture 23: Formula Unit, Boron, Fluorine

• School: McGill University
• Department: Chemistry
• Course: CHEM 120
• Professor: Laura Pavelka

Document Summary

Understand why redox/electron transfer occurs in some reactions. Assign oxidation numbers, identify redox and oxidizing/reducing agents. Balance redox equations using oxidation numbers and half reactions. Know main features/differences of voltaic and electrolytic cells. Utilize short hand notation for voltaic cells. Understand the relationship between e cell and reaction spontaneity. Use e half-cell values to determine e cell, rank ox/red strengths, predict spontaneous redox reactions, and explain metal activity. Complete calculations that relate ecell to g, wmax, and k. Understand/calculate the effects of concentration on ecell and changes in potential as cell operates (using q and k) Recognize redox processes in batteries, fuel cells, and corrosion. Predict product formed at anode/cathode in electrolytic cells. Utilize faraday"s law of electrolysis to predict charge/current/amounts. Oxidation-reduction (redox) movement of electrons (e-) from one reactant to another. You can harness energy from spontaneous redox reactions. Oxidation-reduction: redox: oil rig : oxidation is loss of electrons, reduction is gain of electrons.