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Dartmouth - CHEM - 6
The Bohr Atom (for hydrogen and hydrogen-like atoms)vMer+MnPositive nucleus w/ electron orbiting about in a circle (m will refer to electron mass unlessnoted) Classical physics says that the electron will radiate (lose energy) and fall into thenuc
Dartmouth - CHEM - 6
Chem 6LECTURE DEMONSTRATION #1 (CLOCK REACTION)The aqueous reaction between two anions, peroxydisulfate (S2O2) and thiosulfate8(S2O2), to form sulfate (SO2) and dithionate (S4O2) anions is accelerated by iodide (I). In the346course of the reaction
Dartmouth - CHEM - 6
Chem 6LECTURE DEMONSTRATION #2(TEMPERATURE DEPENDENCE OF k)The Arrhenius expression for the rate constantk = A e Ea/RTis an empirical equation that allows us to systematize kinetic data. Here, R is the Universalgas constant, 8.31451 J mol1 K1, T is
Dartmouth - CHEM - 6
1First Hour ExamChemistry 6Name:No books or papers are to be used. Always include units in all calculations. Show allwork to receive maximum partial credit. The awarding of full credit will require thatnumerical answers be supported by a clear prese
Dartmouth - CHEM - 6
1Chemistry 6Name_No other books or papers are to be used. Show all work. The awarding of full credit willrequire that numerical answers be supported by a clear presentation of the steps used.Include units where appropriate.A periodic table is append
Dartmouth - CHEM - 6
1Chemistry 6Final ExamName_1.a. (12 points) Using the following information, calculate the lattice energy for KCl.Ionization Potential of K = 420 kJ/moleElectron Affinity of Cl = -350 kJ/moleStandard Heat of Formation of KCl = -440 kJ/moleStandar
Dartmouth - CHEM - 6
Solutions to Additional Intermolecular Forces (Liquids) Problems1. The molecules are CH3Br, CH3-O-CH3 and H3C-OH. Br does not form hydrogenbonds. Methanol (H3C-OH) has both an electronegative O atom and the requiredOH bond. It will form hydrogen bonds.
Dartmouth - CHEM - 6
FORMAL CHARGE IDEASGoal: Use of FORMAL CHARGE ideas to evaluate the RELATIVE IMPORTANCE ofthe contributions which DIFFERENT RESONANCE STRUCTURES make to theACTUAL ELECTRONIC STRUCTURE OF THE MOLECULE.Procedure:1. Write down the Lewis Electron Dot Str
Dartmouth - CHEM - 6
MOLECULAR GEOMETRY OR MOLECULAR SHAPEThe determination of molecular shape involves determining BOND ANGLES. We are going touse a very simple theory of molecular shape which only requires Lewis electron dot structures andsimple electrostatic ideas; this
Dartmouth - CHEM - 6
Homework Solutions\Kinetics1. This problem illustrates how the differential rate law (DRL) can be simplifiedwhen the concentration of one or more of the participating species remainseffectively constant during the course of the reaction.(i) Since the
Dartmouth - CHEM - 6
Lewis Electron Dot StructuresFor ATOMS with Z 10, such structures are governed by the OCTET RULE:The number of BONDS formed can be determined by noting that ATOMS with Z 10 tend, whenpresent in molecules, to achieve a RARE GAS ELECTRONIC CONFIGURATION
Dartmouth - CHEM - 6
Variation of Ionization Energy with Atomic NumberFor a many electron atom EPE = -<Ze2/r >Here the brackets represent an average - we must take an average because theelectron does not remain at one fixed value of r .Earlier, we noted that Eorb = -Ze2/2
Dartmouth - CHEM - 6
1.The first step in this problem is to convert the wavelength, , to a frequency, , andthen calculate the energy of the photon using = h. In such problems you must takecare to use a consistent set of units. We will use S.I. units. Thus, = 18900 = 18900
Dartmouth - CHEM - 6
Solutions to Additional Transition Metal Bonding Problems1. Cr3+ has three d-electrons (the 4s electrons are removed before the 3d) so the electron configuration ist2g3.2. NiCl42- has tetrahedral geometry, while Ni(CN)42- has square planar geometry. Th
Dartmouth - CHEM - 6
Radial ProbabilitiesRadial Probability: probability of finding the electron at a distance between r and r + drfrom the nucleus.In general, nlm (r, , ) = Radial Part x Angular PartRnl (r)x lm (, )Radial Probability = Radial Probability Density x Vol
Dartmouth - CHEM - 6
OrderReactionRate LawUnits of k1ABR = k[A]s-12A+BCR = k[A][B]conc-1 s-12A DR = k[A]2conc-1 s-13A ER = k[A]3conc-2 s-13OrderDiff LawInt LawLiner Plot1d[A]= k[A]dt[A] = [A]oe-ktln[A] vs. t2d[A]= k[A]2dt1 = 1 + kt[A] [A]o1
Dartmouth - CHEM - 6
ShieldingThe problem: Our naive application of what we learned with regard to the energyof an electron in a one-electron atom or ion does not work. For example, recallthe appropriate energy expressionEn = -R Z2 /n2 where R is the Rydberg Constant = 2.
Dartmouth - CHEM - 6
WavefunctionsThe Schrdinger equation is writtenH = E, where H is an operator and E is the energy of the system.What is the interpretation of ? is a property of the particle (called the wave-function of the particle) It has noimmediate physical signif
Tufts - LAW - 218
Author: Paul Waldau, DPhil, JD1. Additional Sources on Law and Veterinary Ethics Issues 1.1 Electronic Sources1. Veterinary resources of many kinds can be found at http:/netvet.wustl.edu/vcp.htm. There are many, many other resources available via the in
Tufts - LAW - 218
Law and Veterinary MedicineSecond Hour: State Practice Acts November 2, 2006 Paul Waldau, D.Phil., J.D.First think about this IS THERE A RIGHT TO EMERGENCY TREATMENT FROM A VETERINARIAN WHO HAPPENS TO PASS BY?Extrapolating principlesExtrapolate from
Tufts - LAW - 218
Law and Veterinary MedicineFirst Hour: State Practice Acts (continued) November 6, 2006 Paul Waldau, D.Phil., J.D.As we look at MAs state practice act, stay focused on basic purposesDevelop a sense of state-mandated standards for veterinarians (law) Re
Tufts - LAW - 218
Law and Veterinary MedicineSecond Hour: Basics of the American Legal SystemNovember 6, 2006Paul Waldau, D.Phil., J.D.Importance of the Legal System to the future of Veterinary MedicineThe recent JAVMA article Effects of veterinary board disciplinary
Tufts - LAW - 218
Law and Veterinary MedicineBasics of Legal System (continued) November 16, 2006 Paul Waldau, D.Phil., J.D.Goals for this sessionFinish our engagement with basics of the American legal systemimportant concepts to engage Then talk a bit about the general
Tufts - LAW - 218
Law and Veterinary MedicineFirst Hour: Disclosure November 27, 2006 Paul Waldau, D.Phil., J.D.Importance of todays topicsThese two lectures complete one portion of this courses engagement with substantive law these are crucial topicscommunication, disc
Tufts - LAW - 218
Law and Veterinary MedicineSecond Hour: Confidentiality, Records, Consent and Practical Issues November 27, 2006 Paul Waldau, D.Phil., J.D.Session TopicsConfidentiality Records Practical issues of consent Communication and avoiding suits Why does it ma
Tufts - LAW - 218
Law and Veterinary MedicineMalpractice November 30, 2006 Paul Waldau, D.Phil., J.D. a little refreshment Making sure youre clear on the contract-tort distinction and why it is so important in the legal system Chartcivil system broken into two divisions
Tufts - LAW - 218
Law and Veterinary MedicineFirst Hour: Wildlife and Law December 4, 2006 Paul Waldau, D.Phil, J.D.BusinessExam guidelines to be posted this afternoon discussion at the beginning of the second hour Recent meeting of course directors Last minutes paper
Tufts - LAW - 218
Jurisprudence and EthicsResearch Animals and Law Dec 4, 2006Second Hour Paul Waldau, D.Phil., J.D.BusinessTest short answer What Im looking for conceptual grasp the general idea that shows you get it Translating get it Show you understand the law and v
Tufts - LAW - 218
Law and Veterinary MedicineFirst Hour: Farmed Animals and Law December 6, 2006 Paul Waldau, D.Phil., J.D.Framing todays issuesWe look at 3rd and 4th major areas of human-nonhuman interaction First hourFarmed animals Second hourCompanion animals Well co
Tufts - LAW - 218
Law and Veterinary MedicineSecond Hour: Companion Animals, Cruelty IssuesDecember 6, 2006Paul Waldau, D.Phil., J.D.Objectives in CourseIdentify basic legal issues in veterinary medicine. These include issues related to identifiably distinct categorie
Tufts - LAW - 218
Author: Paul Waldau, D.Phil., J.D.1. Acronyms from Tannenbaum 1995Many of the problems you encounter will have multiple dimensions. A principalcause of this complexity is the fact that you as healer represent two very distinctinterests: the patient an
Monterey Peninsula College - CHEM - 100
Chemistry 1A Spring 2008Exam 1 Key Chapters 1-4ElectronegativitiesH2.2Li0.98Be1.57B2.04C2.55N3.04O3.44F3.98Na0.93Mg1.31Al1.61Si1.9P2.19S2.58Cl3.16K0.82Ca1.0Ga1.81Ge2.01As2.18Se2.55Br2.96Rb0.82Sr0.95In1.7
Monterey Peninsula College - CHEM - 100
Chemistry 1ASpring 2008 Exam 2 KeyChapters 5, 6, and 7 (part)You might find the following useful.0.008314 kJH = E + ( n)RTR=K mol0.00418 kJ q = - Ccal +mw TK molHrxn = Hf (products) Hf (reactants)Heats of Formation for Some Common Inorganic S
Monterey Peninsula College - CHEM - 100
CHEMISTRY 1ASpring 2008EXAM 3 KeyCHAPTERS 7, 8, 9 & 10You might find the following useful.1For each of the following, write the word, words, or number in each blank that bestcompletes each sentence. (2 points each)1. The second ionization energy i
Monterey Peninsula College - CHEM - 100
Name _Chemistry 1A Spring 2008Exam 1 Chapters 1-4ElectronegativitiesH2.2Li0.98Be1.57B2.04C2.55N3.04O3.44F3.98Na0.93Mg1.31Al1.61Si1.9P2.19S2.58Cl3.16K0.82Ca1.0Ga1.81Ge2.01As2.18Se2.55Br2.96Rb0.82Sr0.95In
Monterey Peninsula College - CHEM - 100
Chemistry 1ASpring 2008 Exam 2Chapters 5, 6, and 7 (part)You might find the following useful.0.008314 kJH = E + ( n)RTR=K mol0.00418 kJ q = - Ccal +mw TK molHrxn = Hf (products) Hf (reactants)Heats of Formation for Some Common Inorganic Subst
Monterey Peninsula College - CHEM - 100
Name _CHEMISTRY 1ASpring 2008EXAM 3CHAPTERS 7, 8, 9 & 10You might find the following useful.1For each of the following, write the word, words, or number in each blank that bestcompletes each sentence. (2 points each)1. The _ is the energy necessa
Monterey Peninsula College - CHEM - 100
Name _CHEMISTRY 1A Spring 2008 Final ExamYOU MIGHT FIND THE FOLLOWING USEFUL;H = E + (n)RTR=0.008314 kJ K mol0.00418 kJ q = - C cal + m w T K mol Hrxn = Hf (products) - Hf (reactants)Electronegativities H 2.2 Li 0.98 Na 0.93 K 0.82 Rb 0.82 Cs 0.79
Monterey Peninsula College - CHEM - 100
Chapter One Exercise KeyChapter 1 Exercise KeyExercise 1.1 Classification of MatterThe label on a container of double-acting baking powder tells us that it containscornstarch, bicarbonate of soda (also called sodium hydrogen carbonate, NaHCO3),sodium
Monterey Peninsula College - CHEM - 100
1Chapter 2 Exercise KeyChapter 2 Exercise KeyExercise 2.1 Periodic Table:Complete the following table.NameSymbolGroupNumberaluminumAl13, 3Aor IIIAmetalrepresentative element3solidsiliconSi14, 4Aor IVAmetalloidrepresentative element3
Monterey Peninsula College - CHEM - 100
1Chapter 3 Exercise KeyChapter 3 Exercise KeyExercise 3.1 Classifying Compounds: Classify each of the following substances aseither a molecular compound or an ionic compound.a. formaldehyde, CH2O (used in embalming fluids)all nonmetal atoms - molecu
Monterey Peninsula College - CHEM - 100
1Chapter 4 Exercise KeyChapter 4 Exercise KeyExercise 4.1 Balancing Chemical Equations: Balance the following chemical equations.a. P4(s) + 6Cl2 4PCl3(l)b. 3PbO(s) + 2NH3(g) 3Pb(s) + N2(g) + 3H2O(l)c. P4O10(s) + 6H2O(l) 4H3PO4(aq)d. 3Mn(s) + 2CrC
Monterey Peninsula College - CHEM - 100
Chapter 5 Exercise KeyChemistry 1A - Chapter 5 Exercise KeyExercise 5.1 Ionic Solubility: Predict whether each of the following is soluble orinsoluble in water.a. Hg(NO3)2b. FeCO3c. SnSsolubleinsolubleinsolubled. K3PO4 solublee. PbCl2insoluble
Monterey Peninsula College - CHEM - 100
1Chapter 6 Exercise KeyChapter 6 Exercise KeyExercise 6.1 Kinetic and Potential Energy: For each of the following situations,you are asked which pair has the higher energy. Explain your answer with reference tothe capacity of each to do work and say
Monterey Peninsula College - CHEM - 100
1Chapter 7 Exercise KeyChapter 7 Exercise KeyExercise 7.1 Complete Electron Configuration and Orbital Diagram:complete electron configuration and orbital diagram for antimony, Sb.Write the1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p3Exercise 7.2 Ab
Monterey Peninsula College - CHEM - 100
Chapters 8 and 9 Exercise Key1Chapters 8 & 9 Exercise KeyExercise 8,9.1 Explanation of Bonding Patterns:Explain the following bondingpatterns.a. C - 4 bonds and no lone pairs, and no formal charge.Only the highest energy electrons participate in bo
Monterey Peninsula College - CHEM - 100
1Chapter 10 Exercise KeyChapter 10 Exercise KeyExercise 10.1 Using the Ideal Gas Equation: Krypton gas does a better job thanargon of slowing the evaporation of the tungsten filament in an incandescent light bulb.Because of its higher cost, however,
Monterey Peninsula College - CHEM - 100
1Chapter 12 Exercise KeyChapter 12 Exercise KeyExercise 12.1 Organic Compounds: Identify each of these structures as representingan alkane, alkene, alkyne, arene (aromatic), alcohol, carboxylic acid, ether, aldehyde,ketone, ester, amine, or amide.a.
Monterey Peninsula College - CHEM - 100
319ANION ANALYSISOBJECTIVES FOR THE EXPERIMENTThe student will be able to do the following:1. Write a general description of the qualitative analysis technique for identification of unknown substances.2. Plan a procedure for the analysis of an unknow
Monterey Peninsula College - CHEM - 100
319ANION ANALYSISOBJECTIVES FOR THE EXPERIMENTThe student will be able to do the following:1. Write a general description of the qualitative analysis technique for identification of unknown substances.2. Plan a procedure for the analysis of an unknow
Monterey Peninsula College - CHEM - 100
303HEAT OF FORMATION OF AMMONIUM NITRATEOBJECTIVES FOR THE EXPERIMENTThe student will be able to do the following:1.2.3.4.Calculate the change in enthalpy (heat of reaction) using the Law of Hess.Find heats of reaction using a coffee-cup (open) c
Monterey Peninsula College - CHEM - 100
303HEAT OF FORMATION OF AMMONIUM NITRATEOBJECTIVES FOR THE EXPERIMENTThe student will be able to do the following:1.2.3.4.Calculate the change in enthalpy (heat of reaction) using the Law of Hess.Find heats of reaction using a coffee-cup (open) c
Monterey Peninsula College - CHEM - 100
303HEAT OF FORMATION OF AMMONIUM NITRATEOBJECTIVES FOR THE EXPERIMENTThe student will be able to do the following:1.2.3.4.Calculate the change in enthalpy (heat of reaction) using the Law of Hess.Find heats of reaction using a coffee-cup (open) c
Monterey Peninsula College - CHEM - 100
285Name _Chemistry 1A - Computer WorksheetOpen Microsofts Internet Explorer, find the Chemistry 1A Web page, and answer the followingquestions.1. WhatsthefirstlinkundertheChapter1headingontheChemistry1Awebpage?2. FindChecklist1.Wh
Monterey Peninsula College - CHEM - 100
295LAW OF CONSERVATION OF MASSOBJECTIVES FOR THE EXPERIMENTThe student will be able to do the following:1. Write or identify a description of the Law of Conservation of Mass.2. Given formulas for the reactants in a double displacement reaction, write
Monterey Peninsula College - CHEM - 100
287IDENTIFICATION BY DENSITIESOBJECTIVES FOR THE EXPERIMENTThe student will be able to do the following:1. Write or identify the definitions of density, bulk density, and absolute density.2. Measure mass using an electronic balance.3. Measure volume
Monterey Peninsula College - CHEM - 100
309LINE SPECTRUM OF HYDROGENOBJECTIVES FOR THE EXPERIMENTThe student will be able to do the following:1. Calculate the frequencies and wavelengths for the light emitted in the first five transitions in the Balmerseries for hydrogen.2. Experimentally