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Chapter 8 - Solution

Chemistry 51 - ELAC - General, organic and biochemistry

QuestionAnswer
Heterogeneous mixture does not have a uniform composition throughout the sample.
Homogeneous mixture has a uniform composition throughout the sample.
solution is a homogeneous mixture that contains small particles. Liquid solutions are transparent
colloid is a homogeneous mixture with larger particles, often having an opaque appearance.
solute is the substance present in a lesser amount
solvent is the substance present in a larger amount
Aqueous solution has water as the solvent
electrolyte a substance that conducts an electric current in water.
non-electrolyte a substance that does not conduct an electric current in water.
3 types of solutions a solution of gases, a solid in liquid and a liquid in a solid.
Solubility is the maximum amount of solute that can dissolve in a given amount of solvent.
Saturated solution contains the maximum number of grams of solute that can dissolve.
Unsaturated solution contains less than the maximum number of grams of solute that can dissolve.
exothermic when solvation releases more energy than that required to separate particles
endothermic when the separation of particles requires more energy than is release during solvation.
Rule 1 A compound is soluble if - Group 1A cations: Li+, Na+, K+, Rb+, Cs+ - Ammonium NH4+
Rule 2 A compound is soluble if - Halide: Cl-, Br-, I-, except for salts with Ag+, Hg2+2, and Pb2+ - Nitrate, NO3- - Acetate, CH3CO2- - Sulfate, SO4-2, except for salts with Ba2+, Hg2+2 and Pb2+
Created by: 725650999