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Physical properties of liquids and solution | DOWNLOAD FOR QUALITY GRADES

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Answer the following questions: Question I: choose the correct answer from the following: 1) The phrase '' like dissolve like '' refers to the fact that ___________. A) gases can only dissolve othe... r gases B) polar solvent dissolve nonpolar solutes and vice versa C) solvents can only dissolve solutes of similar molar mass D) condensed phases can only dissolve other condensed phases E) polar solvents dissolve polar solutes and nonpolar solvents dissolve nonpolar solutes 2) When solutions of strong electrolytes in water formed the ions are surrounded by water molecules. These interaction best described as a case of__________. A) Crystallization B) salvation C) dehydration D) supersaturation E) hydration 3) A solution with a concentration higher than the solubility is___________. A) is unsaturated B) is saturated c) is supercritical D) is not possible E)supersaturated 4) Which of the following is most soluble in water? A) n-propanol B) n-pentanol C) n-butanol D) Methanol E) Ethanol 5) Pressure has an appreciable effect on the solubility of ______ in liquid. A) Salts B) solids C) solids in liquids D) gases E) liquids 6) Which one of the following concentration units varies with temperature? A) Mass percent B) mole fraction C) molarity D) molality E) all of the above 7) A 0.100 m solution of which one of the following solutes will have the lowest vapour pressure? A) Ca(ClO4)2 B) NaCl C) Al(ClO4)3 D) KClO4 E) sucrose 8) [Show More]

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