CHEM261 Lecture Notes - Lecture 32: Charge Conservation, Acid Dissociation Constant, Alkene

• School: University of Alberta
• Department: Chemistry
• Course: CHEM261
• Professor: Greta Kroeker

Document Summary

Resonance notes only placement of electron. fluctuate. therefore the true structure is the resonance hybrid. helps delocalized. Resonance molecule represented by more than one lewis structure but differing in. Resonance is not the true structure because it is not in chemical equilibrium, it does not. Resonance structures used because lewis structures is localized therefore resonance. Charge conservation -- sum of formal charges must be the same. Receptor of electron pairs are positive charged atoms, en atom, or atom with multiple. Drawing resonance for cation one arrow changed at a time. electron pair moves towards the positive formal charge. Drawing resonance for anion move two arrows at a time. electron pair moves away from negative charge. note: atom to bond, bond to atom. When there is a positive charge remaining, the positive charge is favoured on the. Charge separation (when compound is neutral breaks to positive and negative). it is not bonds. resonance with full octet. favoured.