06_-_Midterm_Review

06_-_Midterm_Review - ChE 102: Chemistry for Engineers...

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Unformatted text preview: ChE 102: Chemistry for Engineers Midterm Review Midterm Review 2 Midterm Saturday Oct 25 10am-noon Check UW-ACE for your assigned room One 8.5 x 11, double-sided, cheat sheet Calculator 12 questions Covers classes up to Raoults Law for liquids Question & answer session with Mary: Friday, October 24, 5-7pm, RCH 305 Help sessions run by the WEEF TAs: Friday, October 24, 4:30-7:30 pm, RCH 101 Midterm Review 3 Text References Introduction to Chemistry Petrucci 1.4, 2.7-2.8, 3.1-3.3 Chemical Reactions Petrucci 4.1-4.5 Gases Petrucci 6.1-6.9 Liquids, Solids and Phase Equilibrium Petrucci 12.1-12.4, 13.1-13.6 Midterm Review 4 Introduction to Chemistry Daltons Atomic Theory Law of Conservation of Mass Law of Constant Composition Isotopes & ions Periodic Table Covalent & ionic bonding Midterm Review 5 Conversions Conversion table & line calculations Temperature conversions: Changes in Temperature Temperature Conversion T ( o F ) = 1.8 T ( o C ) + 32 T ( o R ) = T( o F ) + 459.67 T ( K ) = T ( o C ) + 273.15 T ( o R ) = 1.8 T ( K ) Avogadros Number (6.022 x 10 23 atoms/mol) Molar Mass Empirical VS Molecular Formula R F K C R C F C F K R K o o o o o o o o o 1 1 , 1 1 , 8 . 1 1 , 8 . 1 1 , 8 . 1 1 , 8 . 1 1 Midterm Review 6 Chemical Reactions Stoichiometric VS Mechanistic Equations ALWAYS check that the reaction is balanced Definition of solute, solvent, solution, and: For Dilutions, the number of moles of a particular solute is constant between the sample withdrawn from the Initial solution and in the Final solution : ni = nf ni = nf [ ] solution volume solute moles M Molarity = solvent mass solute moles Molality = mass solution total solute mass Fraction Mass = solution moles total solute moles Fraction Mol = Midterm Review 7 Chemical Reaction - Limiting Reagent Limiting reagent is used up first, everything left over are excess reagents Determine the limiting reagent by: calculating mols of all reagents...
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This note was uploaded on 09/17/2011 for the course CHE 102 taught by Professor Simon during the Spring '08 term at Waterloo.

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06_-_Midterm_Review - ChE 102: Chemistry for Engineers...

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