Solubility and Intermolecular Forces

Dissolving an ionic salt in water Computer Simulation and Computer Animation

A short computer animation illustration how positive and negative ions in a solid ionic compound dissolve in water might be used to accompany the dissolving salts in water demonstration.
NaCl Dissolves in Water Animation Image341

Solubility of Carbon Dioxide

Two bottles of carbonated water are opened, one cold and one warm and agitated. The warm one spurts all over.

Viscosity

A small metal ball falls much more slowly through glycerine than through water.
Viscosity Setup

Properties of Two Ionic Salts (Crystals): Halite and Calcite

When a large halite crystal, NaCl(s), is struck with a hammer, it cleaves evenly, 90° straight edges. When a large calcite crystal, CaCO3(s), is struck with a hammer, it cleaves at a slant angle. A crystal of halite, sodium chloride, does not conduct, but when it is pulverized and dissolved it does conduct. A crystal of calcite, calcium carbonate, when placed in water does not dissolve.
Why ionic compounds crack Demo Setup Image853

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© Copyright 2012 Email: Randy Sullivan, University of Oregon Chemistry Department and UO Libraries Interactive Media Group