Chapter 13 Journal - Chapter 13 Types of Solutions...

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Chapter 13 Types of Solutions: Intermolecular Forces and Solubility 1. Intro 1.1) The solute dissolves in the solvent. Usually, the solvent is the most abundant component of a given solution. In some cases, the substances miscible (soluble in each other in any proportion) 1.2) Solubility (S): the maximum amount that dissolves in a fixed quantity of a particular solvent at a specified T, given that excess solute is present 1.3) A dilute solution contains much less dissolved solute than a concentrated one 1.4) Substances with similar types of intermolecular forces dissolve in each other 2. Intermolecular Forces in Solution 2.1) Ion-dipole forces: the principal force involved in the solubility of ionic compounds in water 2.2) Hydrogen bonding: a primary factor in the solubility in water of many O-and-N- containing organic and biological compounds 2.3) Dipole-dipole forces (e.g. CH 3 CHO, CHCl 3 ) 2.4) Ion-induced dipole forces (e.g. Fe 2+ ion in hemoglobin, O 2 molecule in the bloodstream) 2.5) Dipole-induced dipole forces: weaker
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