CHEM 1040 Chapter Notes - Chapter 4: Molar Concentration
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16 Dec 2015
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The majority of chemical reactions take place in solution because reactions between two solids often proceeds very slowly or not at all. When you run a reaction in a liquid it is convenient by measuring the amount out in volumes. When a substance is dissolved in a liquid, we call this substance the solute and the liquid the solvent. Concentration refers to the quantity of solute in a standard quantity of solution. A solution is dilute when the solute concentration is low and concentrated when the solute concentration is high. Usually these terms are used comparatively and are not specific. For commercially available solutions however, the term concentration refers to the maximum concentration available. Molar concentration or molarity (m): the moles of sulate dissolved in one liter (cubic decimeter) of solution. The advantage of molarity as a concentration unit is that the amount of solute is related to the volume of solution.
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