Practice exam 2

Practice exam 2 - Chem 101 Exam 2 N ame:_ Please put each...

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Chem 101 Exam 2 Name:_____________________________________ Please put each of your answers on the front cover to make it easier for grading. I will also check in the test booklet for problems that require calculations. If the answer is wrong, partial credit will be given whenever possible. All questions are worth the same amount. You must have calculations present within the test to get credit for an answer even if the answer is correct . 1 0.035 moles 2.1 x 10 22 molecules 7.8 atm 2 3.19 x 10 -19 J 192 kJ/mol photon 4.81 x 10 14 Hz 3 4 or 14(using d electrons) [Kr]5s 2 4d 10 5p 2 Could be either, metalloid If cation, smaller, if anion bigger P, 2 electrons 4 -780 kJ/mol -390 kJ/mol Fe A property that is path independent Δ H, Δ U 5 103 nm Energy released, sign is - More stable At a lower energy level 6 -5020 J 75.2 g Isolated (ideally) No heat or matter escapes 7 CH 4 (g) + 2O 2 (g) CO 2 (g) + 2H 2 O(l) 370L 22.4L 8 f 7orbitals L=3 M l = -3, -2, -1, 0, 1,2,3 Orbital shape
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Constants Conversions Equations Equations n = 6.02 x 10 23 /mol T (K) = t (0ºC) + 273.15 d = m / V RT = 2/3 . N A . mu 2 = 2/3 . N A . E k g = 9.807 m/s 2 1N = 1kg m/s 2 P = g x d x h u rms = (3RT)/M R = 0.0821 L atm / mol K P = N/m 2 = kg / ms 2 d Hg x h Hg = d l
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This note was uploaded on 02/25/2010 for the course CHM 101 taught by Professor Geldart during the Spring '07 term at Rhode Island.

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Practice exam 2 - Chem 101 Exam 2 N ame:_ Please put each...

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