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3 Pages

### Quiz 3-solutions

Course: MATH 305G, Spring 2011
School: University of Texas
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Word Count: 574

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350 Version Quiz 3 laude (50995) This print-out should have 8 questions. Multiple-choice questions may continue on the next column or page nd all choices before answering. 001 5.0 points Predict the electron arrangement in IF+ . 4 1 1. 2; 6. 2. 6; 0. 3. 6; 1. 4. 6; 2. 1. tetrahedral 5. 7; 0. correct 2. trigonal planar 3. octahedral 4. linear 5. trigonal bipyramidal correct 6. pentagonal bipyramidal...

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Coursehero >> Texas >> University of Texas >> MATH 305G

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350 Version Quiz 3 laude (50995) This print-out should have 8 questions. Multiple-choice questions may continue on the next column or page nd all choices before answering. 001 5.0 points Predict the electron arrangement in IF+ . 4 1 1. 2; 6. 2. 6; 0. 3. 6; 1. 4. 6; 2. 1. tetrahedral 5. 7; 0. correct 2. trigonal planar 3. octahedral 4. linear 5. trigonal bipyramidal correct 6. pentagonal bipyramidal Explanation: C2 H6 has 7 single bonds, 1 C C single bond and 6 C H single bonds. A single bonds is a sigma bond so there are 7 sigma bonds. 004 5.0 points Explanation: 002 5.0 points Which of the following has bond angles of 180 ? Carbon has a valence of four in nearly all of its compounds and can form chains and rings of C atoms. Consider the propyne structure. Ha c H C C 1. 2. I 3 2. sp2 , sp2 , sp3 correct 3. NH 2 4. ClO 2 3. sp3 , sp2 , sp3 4. sp3 , sp, sp correct 5. sp2 , sp, sp 5. O3 Explanation: Only I is linear. 3 003 5.0 points In the compound C2 H6 , the number of sigma and pi bonds, respectively, is H Hb What hybridizations would you expect for the carbon atoms identied by a, b, and c, respectively? 1. sp3 , sp3 , sp2 HO 2 C There are ve regions of electron density (including one lone pair) around the central atom: + I F F F F 6. sp3 , sp, sp3 7. sp2 , sp, sp2 Explanation: Version 350 Quiz 3 laude (50995) H sp3 III) SiO2 IV) H2 S Which would most likely be nonpolar? sp C H C C H H 2. III only H N 1. II only sp 005 5.0 points Give the molecular geometry of each central atom: nitrogen, middle carbon, right carbon, respectively. H 2 C C HO 3. I and II only 4. II and IV only 5. None of these H H 6. I and III only correct 7. All of these 1. linear, tetrahedral, tetrahedral 8. only 2. I linear, linear, linear 3. linear, angular, tetrahedral 4. angular, trigonal planar, tetrahedral correct 5. angular, angular, tetrahedral 6. trigonal planar, trigonal planar, trigonal planar 7. trigonal planar, trigonal planar, tetrahedral 8. tetrahedral, tetrahedral, tetrahedral Explanation: Count the RHED on each of the central atoms: three, three, and four as listed in the question. The RHED species the electronic geometry. Then count the number of lone pairs for each central atom to nd the molecular geometry. If there are no lone pairs then the molecular geometry is the same as the electronic geometry. 006 5.0 points Consider the molecules I) BF3 II) PCl3 Explanation: nonpolar: polar: F P Cl B Cl F Cl F nonpolar: Si O polar: S O 007 H H 5.0 points How many -bonds are present in the cyanamide ion (NCNH )? 1. 2 bonds correct 2. 1 bond 3. 3 bonds 4. 4 bonds Explanation: 1 H N C N Version 350 Quiz 3 laude (50995) 1 H N C N 008 5.0 points On the usual Pauling scale of electronegativities, the electronegativity of Selenium (Se) is 2.4, while that of chlorine (Cl) is 3.0. Based on these values we should expect the bonding between Se and Cl to be 1. covalent and polar with the Se end of the bond slightly negative. 2. covalent and polar with the Cl end of the bond slightly negative. correct 3. covalent and nonpolar. 4. unstable in any circumstances. 5. ionic. Explanation: Since the electronegativity dierence is small (3.0 2.4 = 0.6), we expect that this bond will be covalent and polar (because the electronegativity dierence is not zero). Cl has a larger electronegativity than Se, so it will draw electrons toward itself and away from Se. This will make the Cl end of this bond slightly negative. 3
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University of Texas - MATH - 305G
Version 340 Quiz 4 laude (50995)This print-out should have 8 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.001 5.0 pointsRank the following gases in terms of decreasing ideality: Cl2 , H2,
University of Texas - MATH - 305G
Version 445 Quiz 4 laude (51635)1This print-out should have 8 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.pH=8 means that pOH=6 and [OH ]=106Ksp = [Zn2+ ][OH ]2 (solve for Zn2+ )[Zn2+ ]
University of Texas - MATH - 305G
Version 483 Quiz 5 laude (50995)This print-out should have 8 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.ConstantsR = 8.314 J K1 mol1RT 2.5 kJ mol1(at STP)H f productsH fproducts5.
University of Texas - MATH - 305G
Version 081 Quiz 6 laude (50995)This print-out should have 8 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.ConstantsR = 8.314 J K1 mol1= k NAk = 1.381 1023 J K112. I only3. II only4.
University of Texas - MATH - 305G
to (aqt73) Section 2.2 isaacson (55826)This print-out should have 6 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.0013. limit = 34. limit does not exist5. limit = 410.0 pointsDetermine
University of Texas - MATH - 305G
to (aqt73) Section 2.3 isaacson (55826)This print-out should have 6 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.00110.0 pointsDetermine the value of2 f ( x) g ( x)2 f ( x) 5 g ( x)Det
University of Texas - MATH - 305G
to (aqt73) Section 3.1 isaacson (55826)This print-out should have 6 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.00110.0 points14. y + 7x + 1 = 05. y + 7x + 3 = 06. y 7x + 3 = 0Consid
University of Texas - MATH - 305G
to (aqt73) Section 3.3 isaacson (55826)This print-out should have 7 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.00110.0 pointsFind the value of f (a) whenf ( t) =1. f (a) =Find the x-
University of Texas - MATH - 305G
troyer (lmt836) Section 3.3 isaacson (55826)This print-out should have 7 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.00110.0 pointsButcfw_2(a + h) + 3(a + 5)= 2h(a + 5) + (2a + 3)(a +
University of Texas - MATH - 305G
to (aqt73) Section 3.4 isaacson (55826)This print-out should have 6 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.1Find the derivative off ( x) =cos x.5x 4 sin x1. f (x) =4 + 5(x cos
University of Texas - MATH - 305G
troyer (lmt836) Section 3.4 isaacson (55826)This print-out should have 6 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.00110.0 pointsFind the derivative of g wheng (x) = x3 cos x .4. x-i
University of Texas - MATH - 305G
to (aqt73) Section 3.5 isaacson (55826)This print-out should have 6 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.00110.0 pointsFind the derivative off (x) = 3x sin 2x +3cos 2x .22. f
University of Texas - MATH - 305G
troyer (lmt836) Section 3.5 isaacson (55826)This print-out should have 6 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.0014. f (x) =5. f (x) =10.0 points6. f (x) =Find the derivative of
University of Texas - MATH - 305G
to (aqt73) Section 3.5 isaacson (55826)This print-out should have 6 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.0014. f (x) =5. f (x) =10.0 points6. f (x) =Find the derivative off (x
University of Texas - MATH - 305G
troyer (lmt836) Section 3.6 isaacson (55826)This print-out should have 6 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.001003Findxy + 3x + 4x2 = 1 .10.0 pointsdywhendxtan(xy ) = 2x y
University of Texas - MATH - 305G
to (aqt73) Section 3.6 isaacson (55826)This print-out should have 6 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.001xy + 3x + 4x2 = 5 .2. y =y + 3 + 8xxy + 3 + 4xx3. y = y + 3 + 8x
University of Texas - MATH - 305G
troyer (lmt836) Section 3.6 isaacson (55826)This print-out should have 6 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.3.dydx4.dydx(4, 1)5.dydx(4, 1)6.xy + 3x + 4x2 = 1 .y + 3 +
University of Texas - MATH - 305G
to (aqt73) Section 3.6 isaacson (55826)This print-out should have 6 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.1.dydx2.dydx3.dydx(5, 1)4.dydx(5, 1)y + 3 + 8xx5.dydx(5,
University of Texas - MATH - 305G
to (aqt73) Section 3.7 isaacson (55826)This print-out should have 4 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.00110.0 pointsA storm system is headed towards Austin.The Weather Service
University of Texas - MATH - 305G
to (aqt73) Section 3.8 isaacson (55826)This print-out should have 5 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.001In the right-angled triangle10.0 points1. speed = 24 sq. ft/sec2. spe
University of Texas - MATH - 305G
to (aqt73) Section 3.8 isaacson (55826)This print-out should have 5 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.0011the base of the pole when he is 14 feet fromthe pole?1. tip speed =
University of Texas - MATH - 305G
to (aqt73) Section 3.9 isaacson (55826)This print-out should have 3 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.001002110.0 pointsFind the dierential, dy , ofy = f (x) = tan(4x2 ) .1
University of Texas - MATH - 305G
to (aqt73) Section 4.1 isaacson (55826)This print-out should have 5 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.00110.0 points7. x = 55, 0,66 28. x = ,33003Find all the critic
University of Texas - MATH - 305G
to (aqt73) Section 4.1 isaacson (55826)This print-out should have 5 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.00110.0 pointsFind all the critical points of f whenf ( x) =x2x.+ 25
University of Texas - MATH - 305G
to (aqt73) Section 4.2 isaacson (55826)This print-out should have 4 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.00110.0 pointsHow many real roots does the equationx5 + 5 x + 8 = 0have?
University of Texas - MATH - 305G
troyer (lmt836) Section 4.2 isaacson (55826)This print-out should have 4 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.00110.0 pointsHow many real roots does the equationx5 + 2 x + 6 = 0
University of Texas - MATH - 305G
troyer (lmt836) Section 4.3 isaacson (55826)This print-out should have 6 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.001002110.0 pointsUse the graph10.0 pointsThe derivative of a fun
University of Texas - MATH - 305G
to (aqt73) Section 4.4 isaacson (55826)This print-out should have 6 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.00110.0 pointsDetermine if the limit2x + 1lim2 3x + 2x xexists, and i
University of Texas - MATH - 305G
to (aqt73) Section 4.5 isaacson (55826)This print-out should have 4 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.001143.210.0 points42242424242If f is a function on (4, 4)
University of Texas - MATH - 305G
to (aqt73) Section 4.7 isaacson (55826)This print-out should have 4 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.00110.0 pointsA rectangular dog pound with three kennelsas shown in the g
University of Texas - MATH - 305G
to (aqt73) Section 4.9 isaacson (55826)This print-out should have 6 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.00112. F (x) = 7 sin x + 9 cos x + C3. none of these10.0 pointsFind the
University of Texas - MATH - 305G
to (aqt73) Section 7.1 isaacson (55826)This print-out should have 5 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.00110.0 pointsFive functions are dened by the tablex123456f ( x)3
University of Texas - MATH - 305G
to (aqt73) Section 7.3 isaacson (55826)This print-out should have 6 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.00110.0 pointsFind the value of x when1x = 6 log2+ 9 log3 27 .82. ln
University of Texas - MATH - 305G
to (aqt73) Section 7.4 isaacson (55826)This print-out should have 5 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.001Find the derivative off (x) = ln10.0 points1. f (x) = Find the deriv
University of Texas - MATH - 305G
to (aqt73) Section 7.6 isaacson (55826)This print-out should have 6 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.00110.0 pointsf (x) = 5 sin1 x + tan1 x .742. f (1) =1543. f (1) =1
University of Texas - MATH - 305G
to (aqt73) Section 7.8 isaacson (55826)This print-out should have 6 questions.Multiple-choice questions may continue onthe next column or page nd all choicesbefore answering.0014. A and B only5. B only10.0 points6. A onlyDetermine ifx3 + 6 x2 +
University of Texas - MATH - 305G
CH301Worksheet 0Doing Math Without a Calculator(Hint: It is amazing how much math you can do with a pencil and paper, like long division!, or, moreimportant, by estimating and approximating. For example, watch an experimental scientist at work using jus
University of Texas - MATH - 305G
CH301 Fall 2009 Worksheet 21. Calculate wavelength from the following frequencies.a) 625 kHzb) 734 MHzc) 8.4 E14 Hzd) 92 GHz2. Given the following energies, calculate the frequencies of the photons.a) 17 kJb) 564 E-25 Jc) 98 pJd) 230 J3. Rank t
University of Texas - MATH - 305G
CH301 Fall 2010 Worksheet 2: From EMR to QM to EC and Beyond1. Relate Electromagnetic radiation to physical phenomenaGamma rays, X-rays, UV, Visible, infrared, microwave, radio, televisionphenomenonElectromagnetic radiationCooks food by heating water
University of Texas - MATH - 305G
CH301 Fall 2010 Worksheet 2: From EMR to QM to EC and BeyondAnswer Key1. Relate Electromagnetic radiation to physical phenomenaGamma rays, X-rays, UV, Visible, infrared, microwave, radio, televisionphenomenonElectromagnetic radiationCooks food by hea
University of Texas - MATH - 305G
CH301 Fall 2009 Worksheet 3 Answer Key on Electronic Configuations and Periodic Table Trends 1. Write the electron configuration of gallium (Ga) in long notation and in short notation. 2 2 6 2 6 2 10 1 1s 2s 2p 3s 3p 4s 3d 4p 2 10 1 [Ar] 4s 3d 4p 2. Write
University of Texas - MATH - 305G
CH301 Fall 2010 Worksheet 3 Answer Key: Electron Configurations and Periodic Trends1. Match the following elements with their corresponding electron configurations2. Write the electron configuration of arsenic (As) in long notation and in short (noble g
University of Texas - MATH - 305G
CH301 Fall 2010Worksheet 4 Answer Key1. For each element below, indicate the ion(s) it is most likely to form.a) Na Na+b) Ca Ca2+c) IrIr+, Ir3+d) Pb Pb2+, Pb4+e) Cl Clf) SS22. Write balanced unit formulas for the salts formed by the following pair
University of Texas - MATH - 305G
CH301 Fall 2010 Worksheet 5 Answer Key: Drawing Lewis Structures1. Draw the Lewis structure of the following compounds:a . NaClb . CaBr2c . K2Sd . Cs3P2. Draw all correct Lewis structures for the following compounds:a . O3b . NO3-c . SO42-d . HP
University of Texas - MATH - 305G
CH302 Worksheet 1 Answer Key for Physical Equilbria Problems from Lectures 1 through 3For Questions 1-4, use the Phase diagram below.1. What is a good general definition of the term triple point? How many triple points are found int hephase diagram for
University of Texas - MATH - 305G
CH302 Worksheet 2Colligative PropertiesAll of this is intended to be done without the aid of a calculator. All of the calculations are designed suchthat approximating should be straight-forward and produce a correct result.1. Based on the physical cons
University of Texas - MATH - 305G
CH302 Worksheet 2 Colligative PropertiesAll of this is intended to be done without the aid of a calculator. All of the calculations are designed suchthat approximating should be straight-forward and produce a correct result.1. Based on the physical con
University of Texas - MATH - 305G
CH302 Worksheet 3Introduction to Chemical Equilibria1. Write a mass action quotient (aka mass action expression) for the general equation below:aA + bB cC + dD2. What sort of mathematical relationship exists between G and K? Which of these terms shoul
University of Texas - MATH - 305G
CH302 Worksheet 3Introduction to Chemical Equilbria Answer Key1. Write a mass action quotient (aka mass action expression) for the general equation below:aA + bB cC + dDQ = [C]c[D]d / [A]a[B]b2. What sort of mathematical relationship exists between G
Air Force Academy - ECON - 101
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Exercise 2-17Name:Section:Score:0%InstructionsAnswers are entered in the cells with gray backgrounds.Cells with non-gray backgrounds are protected and cannot be edited.A red asterisk (*) will appear in the column to the right of an incorrect answe
Long Beach CC - ACCOUNTING - 553
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University of Texas - COMMUNICAT - 3306
1. (traveling over channel/message transmission)2. noise3. decoding4. (Lack of attention/Bias towards the specific topic)5. Feedback - verbal &amp; nonverbal responses of the receiver6. distractions7. (creating an environment for useful feedback)8. Byp
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ECE 202-EEE206Experiment no. 3Study of Zener diodeTheoretical Background:The diodes we have studied before do not operate in the breakdown region because thismay damage them. A Zener diode is different it is a silicon diode that the manufacturerhas
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t 4:Course IntroductionCourse t . t .Spring 2011Week 2: Fables and ParablesWeekOne extra question:OneWhich people in Chinese history does the storyof Independence refer to?ofQuestions for Discussion: 1QuestionsThe North Wind and the Sun1
Aachen University of Applied Sciences - FIN - 355
Questions for Discussion: The Chaser1. Do you believe in pure friendship between a man and a woman? (group 1-2)2. How often and how long would you like to be together with your lover per week?Why? (group 3-4)3. Do you think a woman should have her own
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Questions for Discussion: The Tell-Tale Heart)1. How do you tell a normal person from a maniac? (group 1 &amp; 2)2. What is the most particular of the narrators personality? (group 3 &amp; 4)3. What do we know about the old man? What motivates the narrator to
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Questions for Discussion: A &amp; P1.2.3.4.5.6.7.Would you like to work as cashier in a supermarket? Why? (group 1 &amp; 2)What will be your feelings toward the girls if you were there? (group 3 &amp; 4)What do you imagine will be the response of your paren