Lecture 10

Lecture 10 - and and Concentrations(6.1-6.3(6.16.1 Properties of Solutions General Properties of Liquid Solutions Solutions and Colloids Degree of

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and Concentrations (6.1 and Concentrations (6.1-6.3) 6.3) 6.1 Properties of Solutions General Properties of Liquid Solutions Solutions and Colloids Degree of Solubility olubility and quilibrium Solubility and Equilibrium Solubility of Gases: Henry's Law 2 oncentration Based on Percent by ass 6.2 Concentration Based on Percent by Mass Mass/Volume Percent Mass/Mass Percent arts Per Thousand ( pt and Parts Per Million ( pm Parts Per Thousand (ppt) and Parts Per Million (ppm) 6.3 Concentration Based on Moles Molarity Dilution General, Organic and Biochemistry 7 th Edition
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6.1 Properties of Solutions lution omogeneous mixture Solution homogeneous mixture Solute the substance in the mixture present in lesser quantity lvent e substance present in the largest quantity Solvent the substance present in the largest quantity Aqueous solution solution where the solvent is water lutions can be liquids as well as solids and gases Solutions can be liquids as well as solids and gases Examples of Solutions Air : O 2 and several trace gases are dissolved in the gaseous solvent, N 2 Alloys : brass and other homogeneous metal mixtures in the solid state Liquid solutions: most of chemical reactions take place in liquid solutions
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General Properties of Liquid Solutions lear, transparent, no visible particles Clear, transparent, no visible particles May have color Electrolytes solutes that are soluble ionic compounds Nonelectrolytes do not dissociate Volumes of solute and solvent are not additive 1 L ethanol + 1 L water does not give 2 L of solution - l Cl( ) ( Cl ) ( Na ) NaCl( O H 2 aq aq s 
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Solutions and Colloids ure liquid substance H Pure liquid substance H 2 O, C 2 H 5 OH Liquid solution: glucose in water, salt in water Colloid suspension: solute particles size 1 200 nm, heterogeneous, not uniform Tyndall effect
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This note was uploaded on 03/07/2012 for the course 830 201 taught by Professor Leyton during the Fall '08 term at Rutgers.

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Lecture 10 - and and Concentrations(6.1-6.3(6.16.1 Properties of Solutions General Properties of Liquid Solutions Solutions and Colloids Degree of

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