Ch.11 - Liquids, Solids & Intermolecular ForcesWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds
Problem

Determine the electron geometry (eg), molecular geometry(mg) and polarity of XeO 3.

a. eg = tetrahedral, mg = trigonal pyramidal, polar

b. eg = trigonal bipyramidal, mg = trigonal planar, nonpolar

c. eg = trigonal planar, mg = trigonal pyramidal, polar

d. eg = trigonal planar, mg = trigonal planar, nonpolar

e. eg = octahedral, mg = tetrahedral, nonpolar

Solution

We’re being asked to determine the electron and molecular geometry and polarity of XeO3. The possible molecular geometries and electron geometries are:



To do so, we first need to draw a Lewis structure for XeO­3

For this, we need to do the following steps:

Step 1: Determine the central atom in this molecule.

Step 2: Calculate the total number of valence electrons present.

Step 3: Draw the Lewis structure for the molecule.

Step 4: Draw the dipoles and analyze the polarity

Step 5:  Determine the electron geometry of the molecule.

Step 6:  Determine the molecular geometry of the molecule.


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