Interpretation: To explain how the presence of Brownian motion distinguishes between a solution and a colloid.
Concept Introduction: A colloid is a mixture in which a component made up of insoluble particles that are dispersed at a microscopic scale is suspended within another component.
Answer to Problem 23LC
Yes, the presence of Brownian motion distinguishes between a solution and a colloid.
Explanation of Solution
Fluid particles are always moving as a result of the Brownian motion. This keeps the particles from settling, which contributes to the stability of the colloidal sol. With the aid of such a motion, it can separate a genuine sol from a colloid.
Brownian motions might not be visible in solutions because the particles there are too tiny to be detected under a light microscope. However, colloids exhibit Brownian motion because their particles can be big and visible under a light microscope.
Chapter 15 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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