Created 6/14/20. Updates available
online.
Intermolecular Forces and Molecules - Interactive Lecture Demonstration
Title
|
Intermolecular Forces and Molecules - Interactive Lecture Demonstration |
Description
|
This Interactive Lecture Demonstration Guide has the following goals. Students will be able to: • Use VSEPR theory to construct common molecules;
• Sketch electron density and identify partial charges based on molecule geometry and electronegativity; • Distinguish between bond and molecule dipoles; • Classify molecules as polar or non-polar; • Compare and contrast permanent and induced dipoles; • Identify hydrogen-bonding, and discuss its origin in terms of molecule geometry and electronegativity; • Explain properties, such as boiling or melting point, by considering different intermolecular forces; • Relate the relative strength of intermolecular forces with melting point or boiling point data, and with particle-level representations of substances at different temperatures; • Describe the dynamic particle motion in a liquid, including the arrangement and motion of molecules accompanying hydrogen-bonding and ion-dipole interactions; • Explain ion-pairing at the particle-level, and describe how this affects colligative properties. |
Subject
|
Chemistry |
Level
|
Undergrad - Intro |
Type
|
Demonstration |
Duration
|
60 minutes |
Answers Included
|
No |
Language
|
English |
Keywords
|
Electrostatic potential, VSEPR, dipoles, electronegativity, intermolecular forces, ion-pairing, molecule geometry, partial charges, phase changes, polar and non-polar molecules |
Simulation(s)
|
Molecule Polarity (HTML5), Molecule Polarity, Molecule Shapes (HTML5), Molecule Shapes, States of Matter (HTML5), States of Matter, States of Matter: Basics (HTML5), States of Matter: Basics, Sugar and Salt Solutions |
Author(s)
|
Ted Clark, Julia Chamberlain |
Contact Email
|
phethelp@colorado.edu |
School / Organization
|
PhET |
Date submitted
|
11/5/14 |
Date updated
|
7/26/17 |