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Northwestern - CHEM - 101
Northwestern - CHEM - 101
Fall 2003 Final ExamMuliple Choice Answers1.) d2.) e3.) c4.) c5.) a6.) a7.) d8.) d9.) d10.) a11.) c12.) b13.) d14.) e15.) d16.) a17.) c18.) a19.) a20.) e21.) c22.) a23.) e24.) c25.) e26.) b27.) a28.) aFall 2002 Final ExamMul
Northwestern - CHEM - 101
Chemistry 101Sign Name: _Fall 2002ID #:_FINALLab Day: _Wednesday, December 11, 12:00-2:00Lab Time: _Lab TA/Section: _Some useful thingsProblemScoreGradex p _h21 - 14(112 points)15 - 16(29 points)=hpan 2(P +) (V nb) = nRTV2En = -
Northwestern - CHEM - 101
Fall 2003 Final ExamMuliple Choice Answers1.) d2.) e3.) c4.) c5.) a6.) a7.) d8.) d9.) d10.) a11.) c12.) b13.) d14.) e15.) d16.) a17.) c18.) a19.) a20.) e21.) c22.) a23.) e24.) c25.) e26.) b27.) a28.) aFall 2002 Final ExamMul
Northwestern - CHEM - 101
Section A. 140 points: Multiple Choice.Circle the best answer.1. Which has the largest radius?a) Heb) Li+c) Na+d) Cl e) Cl2. In 1.0 moles of calcium nitrate, there are how many nitrogen atoms?a) 5b) 18.06*1023c) 6.02*1023d) 24e) 12.04*10233.
Northwestern - CHEM - 101
Fall 2003 Final ExamMuliple Choice Answers1.) d2.) e3.) c4.) c5.) a6.) a7.) d8.) d9.) d10.) a11.) c12.) b13.) d14.) e15.) d16.) a17.) c18.) a19.) a20.) e21.) c22.) a23.) e24.) c25.) e26.) b27.) a28.) aFall 2002 Final ExamMul
Northwestern - CHEM - 101
Atmospheric Chemistry ModuleI. Introductory RemarksIn t his m odule, y ou w ill l earn a boutAtmospheric Chemistry. This type of chemistryhas n ow e volved i nto a m ajor b ranch o fchemistry and is considered by the NationalScience F oundation a s
Northwestern - CHEM - 101
Chapter 3StoichiometryExercises22.A = 207.2 amu; Pb24.A = 185 amu26.GaAs can be either 69GaAs or 71GaAs. The mass spectrum of GaAs will have 2peaks at 144 and 146 with intensities in the ratio of 60:40 or 3:2._144146Ga2As2 can be 69Ga2As2, 69
Northwestern - CHEM - 101
Chapter 5 Solutions#22.(a) 1.0 L of He(g) at STP vs. 1.0 L of Cl2(g) at STPConstant TemperatureKinetic Energy = KE = mass * acceleration2 = ma2He is smaller atom and moves faster compared to Cl2 Cl2 = A curve (slower average velocity) He = B curve
Northwestern - CHEM - 101
Problem set #64, 9, 10, 324. Ok, so the conversion of liquid water to ice can be summed up, fairly uninformatively,asH2O(l)H2O(s)But, I know that I have to heat up ice to get water, or, alternatively, cool down water toget ice. I can include this i
Northwestern - CHEM - 101
Northwestern - CHEM - 101
Chapter 1Chemical Foundations16.a.Law versus theory: A law is a concise statement or equation thatsummarizes observed behavior. A theory is a set of hypothesis that givesan overall explanation of some phenomenon. A law summarizes whathappens; a the
Northwestern - CHEM - 101
icplab2 11-9-05Solution LabelBatch LabelCustomer IdCustomer LabelTypeBlankBlkBlankBlkBlankBlkBlankBlkStandard 1StdStandard 2StdStandard 3StdStandard 4Std1Samp1Samp1Samp1Samp2Samp2Samp2Samp2Samp3Samp3Samp3Samp3S
Northwestern - CHEM - 101
Sheet1Sample ID, Concentration, %T - 400 nm, Abs 400 nm, Scatter 400 nm, %T - 430 nm, Abs 430 nm, Scatter 430 nm, %T - 472 nm, Abs 472 nm, Scatter 472 nm, %T - 505 nm, Abs 505 nm, Scatter 505 nm, %T - 526 nm, Abs 526 nm, Scatter 526 nm, %T - 568 nm, Abs
Northwestern - CHEM - 101
Lab 5 : LibetheniteMichael ParrottSample IDBlank4321Concentration00.00610.010.0170.028%T - 400 nm Abs 400 nm100089.3464860.04892397.2379780.01216410001000Scatter 400 nm00000%T - 430 nm10083.79174984.16011878.90471573.45
Northwestern - CHEM - 101
+OH +HNO 3+Zn++HSO24
Northwestern - CHEM - 101
TOPIC PRIORITY LISTFirst Exam, Chemistry 101, 2005All of Chapters 1, 2 and 3 (to and including section 3.8) are possibly onthis exam.Exam Details: No extra notes allowed for the exam. Bring calculators, pen (notea pen is required to request a re-grad
Northwestern - CHEM - 101
Northwestern - CHEM - 101
Northwestern - CHEM - 101
Page 3 of 7Print Name :MULTIPLE CHOICE. [4 points each] Circle your response(s) to thequestions numbered 1 through 6.1. All atoms of a given element have the same_ .a. massb. number of protonsc. densityd. atomic mass numbere. none of the above2.
Northwestern - CHEM - 101
Page 3 of 7_MULTIPLE CHOICE.[4 points each]questions numbered 1 through 6.1.massb.number of protonsc.densityd.atomic mass numbere.none of the aboveWhich species (one or more) can be found on the earths crust?a.CaCO3b.Mg3(CO3)2c.Cld.
Northwestern - CHEM - 101
Northwestern - CHEM - 101
Why Write A Report?The goal of the report is to communicate the experiments that you haveconducted and the results of those experiments. The report is both moreformal and more succinct than your laboratory notebook but must bedetailed and accurate eno
Northwestern - CHEM - 101
State of IllinoisRod R. Blagojevich, GovernorIllinois Environmental Protection AgencyDouglas P. Scott, DirectorH. Kramer and CompanyOn-site and Off-site Soil SamplingChicago, IllinoisIn June 2005, the Illinois Environmental ProtectionAgency (Illin
Northwestern - CHEM - 101
Week 1 Homework AssignmentsChemistry 101, Fall 2005.Read Chapter 1 and beginning of Chapter 2Homework for Chapter 1:Recommend doing the following.12, 20, 23, 26, 31, 33, 36, 46, 49, 54, 59, 67, 70, 74, 75, 77, 79
Northwestern - CHEM - 101
Homework 2, Read Chapter 2.Problems: 26, 27, 32, 37, 41, 44, 48, 50, 56, 63, 66, 70, 72, 73, 74, 76, 78, 79, 80, 84, 87NOTE: First exam date has been changed to October 10, see announcement.
Northwestern - CHEM - 101
HOMEWORK 3, Chemistry 101, 2005Read Chapter 3.Practice problems for simpler concepts:21, 25, 28, 32, 35, 39, 41, 46, 51More complex problems:53, 57, 65, 71, 73, 77, 87, 91, 93, 95, 97, 104, 108, 109, 111, 113, 115, 116, 119, 121, 123Additional Probl
Northwestern - CHEM - 101
Investigation into Sources of Lead in Pilsen, ChicagoMichael J. ParrottAbstract:Lead is found naturally in the environment. However, high concentrations of lead nearcommunities can cause negative health affects[1].Citizens and activists of Pilsen, Ch
Northwestern - CHEM - 101
Coke .vs. Diet Coke Part Aaverage:Std. Deviationaverage:Coke Density (g/mL)Diet Coke Density (g/mL)BuretPipetGradCylBuretPipetGradCyl1.071.111.0031.0620.9681.031.031.030.89630.89410.86221.0051.041.040.97170.99480.9841.421.04
Northwestern - CHEM - 101
Coke .vs. Diet CokeVolume (mL)Mass (g)DIET COKE15.0014.88195.005.951110.009.976520.0019.886315.0015.449620.0020.6870COKEVolume (mL)Mass (g)5.005.003610.0010.2808
Northwestern - CHEM - 101
K. LongK Lat87.6600887.6600887.6600887.6600887.6600887.6600887.6600887.660083 A145 C256 F97 F118 F249 F2110 F2211 F17Long41.8540541.8540541.8540541.8540541.8540541.8540541.8540541.85405LatDist-87.658739-87.661189-87.663553-
Northwestern - CHEM - 101
Lab 5: Libethenite1.6f(x) = 48.6383982063x + 0.1525449274R = 0.9949405813Abs or ba nc e a t 5 2 6 = wa ve le ng t h1.41.210.80.60.40.2000.0050.010.015Molarit y0.020.0250.03Lab 5 : LibetheniteMolarity of Serial DilutionsDilutionMola
Northwestern - CHEM - 101
http:/www.pilsenperro.org/heFiskGeneratingStationat1111W.Cermak
Northwestern - CHEM - 101
O rganized by Lead ConcentrationsSampleIDLongitute Latitude MassIronLeadArsenicChromium Moisture Section163-87.671 41.853161.02201.63 25873.63 36.154638.8 24211-87.6612 41.85331.0025309545268.111.11149.3992.4 2356-87.6596 41.859431.
Northwestern - CHEM - 101
Original TableSampleID Longitute LatitudeD13G15B7H1G18B15A10C25A17A17D7C18C11C14C14C14C17A5A6A5C22D12G16G23G4C11H1D26C19H4D24G22D24G4H4G12C20E3D26F1 195B10B18H1C13A7B8B12F1G15B9C19B13C10G8C12G20B6
Northwestern - CHEM - 101
Original TableSampleID Longitute Latitude MassIronLeadArsenicChromium Moisture Section163-87.6611 41.85351.004442.7328.610.130.563.957 25211-87.65771 41.8597471.0083 263.602 9.20688 0.0350925 0.51319446.21 2656-87.3941.511.055 160.056
Northwestern - CHEM - 101
NumberAddress/Intersection1 S. Throop St. & W. 21st Street2 1236 W. 21st Street3 S. Racine Ave. & W. 21st Street4 Dvorak Park, near S. May St. & W. 21st Street5 Dvorak Park, midway between S. May St. & S. Carpenter St., in center of park6 Dvorak Pa
Northwestern - CHEM - 101
Northwestern - CHEM - 101
Question Set 4.GSW Program, Chemistry 101, Fall 20051. Suppose that I had a molecule described as being made from two molecular pieceswith a symbolic code AD, where D has partial negative charge and A has partialpositive charge. Draw a sketch of how t
Northwestern - CHEM - 101
DIST LEAD250020001500Column PLinear Regression for Column P1000f(x) = 5.0220972992x - 48.2018273911R = 0.06164604015000020406080100120140160180200Dist ance from Fact ory versus Lead Concent rat ions16001400Le a d Conc e nt r a t i
Northwestern - CHEM - 101
Lead Concent rat ions Versus Dist ance From Fact ory35000Le a d Conc e nt r a t ions ( ppm)300002500020000150001000050000f(x) = 557.9163584026x + 1959.9183631349R = 7.2943280013613E-00500.050.10.150.2Dist ance from t he Fact ory (degrees)
Northwestern - CHEM - 101
Lead Concent rat ions Versus Dist ance From Fact ory40003500Le a d Conc e nt r a t ions ( ppm)3000250020001500f(x) = -336.947923363x + 1294.179684854R = 0.00047998651000500000.050.10.150.2Dist ance from t he Fact ory (degrees)0.250.30
Northwestern - CHEM - 101
Lead Concent rat ions Versus Dist ance From Fact ory20001800Le a d Conc e nt r a t ions ( ppm)1600140012001000f(x) = -1282.642520935x + 995.0371798167R = 0.2392960741800600400200000.10.20.30.40.5Dist ance from t he Fact ory (degrees)
Northwestern - CHEM - 101
SampleID163211566789A10A10A11A12A13A13A14A14A15A15A16A16A17A17A17A19A2A2A3A4A4A5A5A5A5A6A6A7A8A8A9A9B1B1B10B10B10B10B11B12B12B13B13B14B15B16B17B18B18B18B19B19B19B19B2B2B2B20B3B3B4B5B5B5
Northwestern - CHEM - 101
Template for Formal Lab ReportsWhy Write a Report?Every student who participates in the General Chemistry laboratory must submit two written reports:one at the beginning of Week 3 (on lead analysis on soil collected from your home state) and one at the
Northwestern - CHEM - 101
Tips to write a Lab ReportTwo essential things about Lab Reports:a. they must be written in permanent ink.b. do not recopy or type them using the computer.You must turn in the Lab Report written in permanent ink in your Lab Notebook.1. Procedural Out
Northwestern - CHEM - 101
Orange 1Orange 2Lemon 1Lemon 2Lime 1Lime 2Grapefruit 1Grapefruit 2Vjuice of the whole fruit (mL)62.1532823.18.926.2136.193.3grams of VC per mL of juice3.90E-043.86E-049.05E-049.15E-046.24E-043.61E-044.90E-044.72E-04
Northwestern - CHEM - 102
Northwestern - CHEM - 102
Page 1 of 6Print Name:_1. How many lone pairs of electrons are found in the Lewis structure of urea, (NH2)2CO?A) 2B) 3C) 6D) 4E) 82. Which of the following would likely dissolve in benzene?A) NaC1B) C12CCC12C) Na2CO3D) Ca(HCO3)2E) H2O3. Use
Northwestern - CHEM - 102
10 BondingTuesday, March 01, 201112:24 AM10.1 Lewis TheoryLewis Theory was created by G.N. Lewis, Irving Langmuir, and Walther KosselFundamental ideas of the Lewis Theory: Valence Shell electrons play an important role in chemical bonding Electrons
Northwestern - CHEM - 102
Last Name_First Name_p1 of 10Student ID #SignatureLab TAs nameLab SectionMIDTERM EXAM Chemistry 102, Winter 2006Please read the entire page of directions before you begin. Do not begin until you areinstructed to do so by your TA. You will have 2
Northwestern - CHEM - 102
Observations on Synthesis of Gold ColloidsThe Hydrogen tetrachloroaurate (III) trihydrate is aclear, pale yellow liquid. When the sodium citrate isadded the liquid initally turns clear. After a minute ortwo the liquid is a deep red/burgundy. Some gold
Northwestern - CHEM - 102
CHEM 102 Final Equation Page:H= E + PVE = H PVE = q + wGo = RTlnKG = H TSG = Go + RTlnQKp = Kc (RT) nPV = nRT = MRTisoluteln (A/Ao) = ktE = mc2t1/2 = 0.693kx = b (b2 4ac)1/22aTb = ikbmTf = ikfmC = kHPPtot = XaPa + XbPb + XcPcHorxn = (m
Northwestern - CHEM - 102
Wild Salmon vs. Farm-raised Salmon:the Determination of Toxic Metals in Fish SamplesKyle J. SimonsonThe amount of toxic metals in fish has become a significant health concern; the high levels of Arsenic,Mercury, and Cadmium led the Chicago Tribune1 to
Northwestern - CHEM - 102
Gold Nanoparticle Experiment Formal ReportsExcept for the prelab, the grading will be done on the formal report. It must be submittedto SafeAssignment on Blackboard, as well as submitted to your T.A. as a hard copy alongwith lab notebook copies. If not
Northwestern - CHEM - 102
Analysis of Colloid Characteristics: Observations onGold NanoparticlesMichael J. ParrottABSTRACT: We use visible absorption spectroscopy to measure the changes in the colloid bymeasuring the absorbed wavelengths (the change in color of the colloid) as
Northwestern - CHEM - 102
Northwestern - CHEM - 102
Northwestern - CHEM - 102
Northwestern - CHEM - 102
Northwestern - CHEM - 102
Composition, Size, and Shape Matter100 nm200 nm100 nm100 nmABCDAg NanoprismsAu Spheres~100 nmAu Spheres~50 nmAg Spheres~90 nm~100 nm100 nmEAg Spheres~40 nmDNA PropertiestneGeDNA DetectionDNA BasicsDise The average human contai