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Chem 1332 Fall 2010 Exams (1)

Chem 1332 Fall 2010 Exams (1) - Title Exam1 Started...

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Title: Exam 1 Started: September 29, 2010 5:30 PM Submitted: September 29, 2010 6:50 PM Time spent: 01:19:09  Total score: 12/20 = 60%   Total score adjusted by 0.0  Maximum  possible score: 20  1.   Which type of intermolecular/interparticle force is the strongest in most po substances?    Student Response A.  Hydrogen bonding B.  Ionic C.  Dipole-dipole D.  Induced dipole - induced dipole E.  London Dispersion Score: 0/1    2.   Which of the following substances would be expected to have the lowest  pressure?    Student Response A. CH 3 CH 2 CH 2 CH 2 CH 3 B. CH 3 CH 2 OH C.  CH 3 CH 2 CH 2 OH D.  CH 3 OCH 3 E. HOCH 2 CH 2 OH Score: 0/1   
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3.   Rank the various "heats" of water in order of increasing size.    Student Response Score: 1/1    4.   Which of the following statements is true?    Student Response Score: 0/1   
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5.   How much energy in J is needed to convert 48 g of liquid ethanol at 67  at 97 o C. You might need to know that: mp = -114  o C and bp = 78 o C The heat of fusion is 4.6 kJ/mol and the heat of vaporization is 46.0 kJ/m Finally, the specific heats of the solid, liquid and gas are, respectively 2.1, 1.8 J/g  o C.    Student Response Score: 1/1    6.   Which solvent will be better able to dissolve the given solute? (I) Ammonia in water or hexane(l) (II) pentane in water or carbon tetrachloride(l) (III) potassium iodide in methanol or in hexane    Student Response A.  water, water, hexane B.  hexane, water, methanol C.  water, carbon tetrachloride, methanol D.  hexane, carbon tetrachloride, hexane E.  water, water, methanol
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