Download Exam II Study Guide - Chemistry Fundamentals I | CHEM 131 and more Study notes Chemistry in PDF only on Docsity! CHEM 131-S11 Study Guide Hour Exam II - Prof. Mignerey Reminder: • Bring your section number: Know your section number and write it on your exam. • Write down both your first and last names on the first page and write at least your last name on every page. • Bring your University ID card: to show when you turn in your exam. • Bring nonprogrammable, scientific calculator: (graphing calculators will not be permitted) Provided on the EXAM: Periodic Table with element symbol, name, atomic number, mass number Electronegativity table, Table 4.1 from text Chapter 9 and 10: not pp 364-367, Sec. 9.10 or 9.11 except for bond lengths p.390 for C-C bonds, no Sec. 10.8 • Write Lewis Dot Structures for atoms, ions, and molecules •Write resonance structures for molecules with 1 or more double bonds to the central atom. •Predict and name the valence shell electron orbital geometries of central atoms in a molecule. •Predict and name the molecular geometries, estimate bond angles. •Formal charge - use to select between possible structures •Predict the relative polarity of bonds and molecules •Give the orbital hybridization responsible for bonds to the central atom. •Identify sigma and pi bonds. •Structure of Benzene and other organic molecules (be able to identify the hybridization of specific atoms in the structure.) Chapter 4: no Sec. 4.9 •Classify compounds as being strong electrolytes or nonelectrolytes. •Classify chemical reactions as being precipitation, gas forming, acid/base •Write balanced chemical equations, and net ionic equations for precipitation, gas forming and acid/ base reactions. •Identify spectator ions •Predict products of acid/base reactions in aqueous phase. •Molarity: n=MV •Calculate molarity of a solute(s) in solution, e.g., for molecular compounds and ionic compounds. Also, calculate molarities of ionsin aqueous solutions. •Calculate the mass of solute required to prepare a solution of a specified molarity and volume. •Dilution calculations – know variants of M1 x V1 = M2 x V2, for example: • a. Calculate volume required to achieve a concentration of solution by dilution • b. Calculate new concentration of solution following dilution •Calculations of chemical reactions: limiting reagent theoretical yield, percent yield - using masses and solution concentrations.
