CHM 1311 Study Guide - Final Guide: Jmol, Electrolyte, Molality

• School: University of Ottawa
• Department: Chemistry
• Course: CHM 1311
• Professor: Wendy Pell

Document Summary

Uneven distribution of electron charge and its bent molecular shape. Even charge distribution, covalent bond, evenly, same electronegativity. O-h bond, o is stronger for electronegativity, Molecular polarity, combination of polar bonds and the bent shape makes the molecule polar, region near oxygen is partially negative and around the hydrogen atoms it is partially positive. Water separates ions by replacing the attractions with stronger attractions between several water molecules and each ion. Dissolution: occurs because the attractions between each ion and several water molecules out weigh the attractions between ions. Electrical conductivity, flow of electric current, current flow implies the movement of charged particles. When the ionic compound dissolves, separated/dissociated ions move towards an electrode of opposite charge. Electrolyte: a substance that conducts current when dissolved in water. Number of counted ions/particles times avagodro"s number gives us the total number of particles. Molar ratio for the moles of ions in solution. Already have polar bonds that react with water.