Gen Chem II - Study Guide Exam I - SP09

Gen Chem II - Study Guide Exam I - SP09 - CHEMISTRY...

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CHEMISTRY 1032 (Michel) – INFORMATION FOR EXAM I You will have 55 minutes to complete the exam. Exam I will cover the material I lectured on from chapters 11 and 12. There will be a variety of different type of problems – multiple choice, true-false, fill in the blank, brief explanations, ordering, and numerical problems. Some questions will taken directly from (or will be very similar to) examples and problems in the textbook, the MasteringChemistry homework, the MasteringChemistry practice problems, and the ones I did in class. You will be given a periodic table and a few equations and constants (see below). The following study guide and suggested problems should help you prepare for the exam. In addition, you should try the practice exam questions that appear at the end of this document. Chapter 11 Section 11.2 : You should know the 3 main states of matter, their various properties such as shape, density and volume, and the phase changes. Section 11.3 : Know all the different types of intermolecular forces (IMFs) and their relative strengths; be able to draw diagrams showing IMFs between molecules/ions/atoms; be able to predict relative orders of boiling points. Try Example (and For Practice) 11.1, 11.2; Problems (at end of chapter): 49 – 54, and 118. Section 11.4 : Be able to explain how IMFs play a role in surface tension, viscosity (shape important) and capillary action. Try problems 59 – 64. Section 11.5 : Understand vaporization and condensation, and enthalpy (heat) of vaporization ( H vap ). Try Example 11.3 (and the ones for more practice). Understand what is meant by a dynamic equilibrium, and the conditions necessary for when a liquid boils. Know the difference between boiling points and normal boiling, and how boiling points correlate with H vap and external pressures. Be able to determine boiling points from vapor pressure curves and also H vap from a plot of lnP vs. 1/T (the Clausius-Clapeyron equation); be able to calculate a vapor pressure (or a temperature) using the two-point form of the C-C equation. Try Example 11.4 and 11.5 (and the ones for more practice) and problems 55, 56, 65 – 70, 75, and 76. Section 11.6 : Know what is meant by sublimation, deposition, melting (fusion) and freezing, and H fus , and why H vap is always greater H fus for a given compound. Section 11.7 : Be able to draw heating curves (like Fig. 11.36) and to calculate the heat absorbed (or released) when a substance undergoes one or more phase changes. Try problems 77, 78, 81, and 82.
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Chapter 12 Sections 12.1 and 12.2 : Know what a solution is, the difference between the solute and the solvent, and solubility. Remember the “like dissolves like” rule and be able to predict if 2 liquids will be miscible or
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Gen Chem II - Study Guide Exam I - SP09 - CHEMISTRY...

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