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Unformatted text preview: Chemistry 128 Chapters 16 Study Guide for March 5th Midterm Exam (more important ones are marked with *) Chapter 1: Significant Figures and Scientific Notation Intensive vs. extensive properties Error, Accuracy, Precision, and Uncertainty Chapter 2: *Composition of atom and count subatomic particles *Isotopes *Calculate weighted average mass of a naturally occurring element Atomic theory (classical vs. modern) and key scientists' discovery **Electron and energy level, principal level, subshell (sublevel), orbital *Periodic table, group (family) and period **Electron configuration (how to write it), shorthand version, Aufbau, Pauli, Hund's rule *Valence electrons and octet rule *Trends in periodic table (atomic size, IP, EA) (what is IP, what is EA?) Chapter 3: Lewis symbol for atoms, Chemical bond (Covalent, polar covalent, ionic) Electronegativity, polarity of the bond Chemical formula Naming the compound (covalent, ionic, polyatomic cations and anions) ***Draw Lewis structure for molecules and ions (cation and anion) *VSEPR theory *Geometry of molecules, ions **Polarity of molecules Chapter 4: *amu, mole, Avogadro's number (1 amu x NA = 1 g, NA represents Avogadro's number) *formula mass (in the unit of amu), molar mass (in the unit of g/mol) **amu/molecule = g/mol ***chemical equation, balance the equation classification of chemical reactions (precipitation, combustion, oxidationreduction, acidbase) *theoretical yield, percentage yield ***calculations based on chemical equation Chapter 5: Ideal gas Pressure, barometer (You need to know 1 atm = 760 torr = 760 mmHg. Given pressure value in mmHg, you should be able to convert it into atm) *Boyle's law *Charles's Law **Combined gas law *Avogadro's law Molar volume, STP **Ideal gas law (combines Boyle's, Charles's, Avogadro's law) Dalton's law ***Calculations (P,V,n,T) Vapor pressure (boiling point and vapor pressure) *Van der Waal's force (dipoledipole interaction, London force) *Hydrogenbonding (be able to tell which compound displays what kind of forces or interaction) Chapter 6: Solution, colloid, suspension (definition) *Surface tension (definition) Henry's Law Electrolyte vs. nonelectrolyte (how it affects solution properties, particularly colligative properties) Concentration %m/V, %m/m, ppt, ppm, ppb (definition and calculation) Concentration based on moles, molarity and molality (definition and calculation) ***Dilution, M1V1=M2V2 calculation *Colligative properties (what are they?) Rauolt's Law Vapor pressure **Freezing point depression (calculation, use it to determine the molecular mass) *Boiling point elevation (calculation) Osmotic pressure (definition) Osmolarity (definition) **Van't Hoff equation (=MRT) (estimate the osmotic pressure of a solution) Equivalent, eq/L, meq/L for electrolyte Isotonic, hypertonic and hypotonic solution ...
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This note was uploaded on 03/10/2012 for the course CHEM 01:160:128 taught by Professor Zbaida during the Spring '09 term at Rutgers.
- Spring '09