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MT1.f2k9.pg2

# MT1.f2k9.pg2 - Exam l Form D-FALL 2009-Johnson 8(3 pts...

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Exam l, Form D-FALL 2009-Johnson 8 (3 pts.) Consider the following mechanism for the destruction of ozone. Step l: 03 + NO + NO2 + 02 Step2: NO2+O->NO+02 .he catalyst in this reaction? a) or ,6a.ro c) NO2 d) O 9. (3 pts.) Which step in #8 would you assume to be the slow step? s.*st"or e) Oz d) 7.80 mol.L-r.s I e) 11.7 mol.L-r.tr d) -98 kJ/mol, galvanic cell e) -16.3 kJ/mol, galvanic cell d) 27 kJ/mol e) More information is needed, since this is a Hess's law calculation. 3.90 mol.L-r.s t. 1.30 mol.L-r.s r. 2.60 mol.L-l.s r. a) +98 kJ/mol, electrolltic cell b) -98 kJ/mol, electrolytic cell a) b) c) 102 kJ/mol 55 kJ/mol 47 kllmol OThis exam is copyrighted by Dr. Christina A. Johnson at the University of Califomia, San Diego. Reproduction of this exam without written approval is prohibited. What is the catalyst in this b) Step 2 c) both steps would be equally slow d) not enough information to determine 10. (7 pts.) An unknown metal (M) is electrolyzed. It took 74.1 s for a current of 2.00 amp to plate 0.107 g of the metal from a solution containing M(NO:)f .
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