Unit #1Unit #2Unit #3Unit #4Unit #5Unit #6Unit #7Unit #8Unit #9Unit #10
spacerUNIT # 9  
spacerspacerIntroduction
spacerspacerObjectives
spacerspacerReading

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spacer9.1 What is a
spacerSolution?
spacer9.2 Terminology
spacer9.3 Solubility of
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spacer9.4 Solubility of
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spacer9.5 Molarity
spacer9.6 Solution
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Unit #9 SOLUTIONS

9.1 - What is a Solution?

In unit 2 we learned that solutions are homogeneous mixtures (section 2.4.2) of two or more substances. For review, take a look at the classification scheme of matter. The substance present in the lesser amount is called the solute. The substance present in the greater amount is called the solvent. A common solvent that isused is water. However, there are other solvents such as acetone, hexane, methanol that are commonly used as cleaners and to dissolve grease.

Solutions are not only limited to liquid solutions. For example:

  • air is a gaseous solution of oxygen, argon, carbon dioxide, and water vapor in nitrogen gas.
  • 10K gold is a solid solution of silver,copper and zinc in gold.
  • carbonated soft drinks is a liquid solution of carbon dioxide gas, sugar in water.
  • vinegar is a liquid solution of vinegar in water.

In this course, we will focus on aqueous solutions, those which are prepared with water as a solvent.

Section 14.1

Solutions ..p363

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