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Unit 7, Quiz #1
2017-18



Your first quiz of Unit 7 will be on Thursday, March 22 and cover material from Chapter 15 of the textbook. Quiz questions will target the following objectives.


  1. Solution Model:  To understand our model for predicting whether or not a given solute would dissolve in a given solvent; this understanding should include an understanding of the three-step process, its energy demands, and the like-dissolves-like application.

    Resources: Read Chapter 15.1;  Chapter 15.1 Reading Guide (pp. 1-2); A Model of Solutions (pp. 3-6)



  2. Solubility Chart:  To understand the variables that affect the solubility of a solute in water, including an understanding of the terms saturated, supersaturated, and unsaturated and the ability to read and interpret a solubility chart.

    Resources: Lab SLG2 (Solubility Curve); Chapter 15.2; Chapter 15.2-5 Reading Guide (pp. 7-8); Solubility Chart (pp. 9-10); WebAssign



  3. Concentration and Molarity:  To understand the concept of molarity as the ratio of moles of solute pre liter of solution and to use the molarity equation and the molar mass to mathematically relate the the molarity, the volume of solution, the number of moles of solute, and the mass of the solute.

    Resources: Read Chapter 15.2-4; Chapter 15.2-5 Reading Guide (pp. 7-8); Concentration (pp. 13-15); WebAssign



  4. Dilution:  To use the molarity concept in order to analyze a dilution experiment in which the concentration of solute is changed by the addition of water to the solution.

    Resources: Read Chapter 15.4; Chapter 15.2-5 Reading Guide (pp. 7-8); Concentration (p. 14, Q#15, 16); Dilution Demonstration (p. 15)



  5. Concentration and Dissociation:  To write the equation for the dissociation of an ionic solid in water and to use the equation to determine the concentration of the resulting ions in solution and the number of moles of each ion if given the volume and the solid's molarity.

    Resources: Read Chapter 15.4; Chapter 15.2-5 Reading Guide (pp. 7-8); Concentration (p. 14, Q#14, 17); WebAssign



  6. Solution Stoichiometry:  To combine an understanding of molarity and stoichiometry in order to solve a stoichiometry problem that includes molarity and volumes of reactants as the given quantities.

    Resources: Read Chapter 15.6-7; Chapter 15.6-7 Reading Guide (p. 17-18); ChemThink: Gas Behavior (pp. 21-22), Kinetic Theory of Gases (pp. 23-24)












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