CHEM 1127Q Study Guide - Final Guide: Barometer, Mole Fraction, Square Planar Molecular Geometry

• School: UConn
• Department: Chemistry
• Course: CHEM 1127Q
• Professor: Clyde Cady

Document Summary

Exam guide covers the following topics: bonds, molecular shapes, hybridization, ideal gas law, pressure, stoichiometry, dalton"s law, kinetic molecular theory, real gases . )h3 e : odd # of valence , electron deficient (b, hypervalent central atom (pc )l5. Lewis dot structures tell us about the bonding in molecules, but not about the shape of the molecule - the 3-dimensional structure. Concerned with number of bonding pairs and lone pairs of e e . Molecular structure : includes only placement of atoms; lone ignored e . Covalent bonds (with shared electrons) can be: = equal sharing of electrons: h-h, cl-cl ( pure covalent bond if atoms same) All five is nonpolar because the bonds are symmetric: dipoles cancel each other e pair geometries are symmetrical if all bonds are the same is polar because bonds are not symmetric: the dipoles don"t cancel each. Ccl4 is nonpolar because the bonds are symmetric: dipoles cancel each other.