Exam2A - Tuesday, March 17, 2009 CHM 2210 Sec. 4140 Exam #2...

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Tuesday, March 17, 2009 CHM 2210 Sec. 4140 Exam #2 Form A Question Page 1 of 2 For your answers use the answer sheet Place your answers on answer sheet, page 1 : Graded by 1. ( 9 pts ) Dempsey Draw curved electron arrow/s to show how (a) t -butyl cation reacts as a Brønsted acid with water and draw the resulting products ; (b) t -butyl cation reacts as a Lewis acid with water and draw the resulting product structure . 2. ( 7 pts ) Dempsey (a) Complete the Lewis structure of sodium hydride and draw curved electron arrows to show how sodium hydride reacts with 3-methyl-1-butyne. (b) Complete the reaction with the reaction products . 3. ( 8 pts ) Dempsey Complete the reaction of sulfuric acid (a strong inorganic acid) with acetic acid . Show how the conjugate acid in this reaction is stabilized by resonance : Draw two valid resonance structures for the conjugate acid. Use curved electron arrows in the first resonance structure to show the flow of electrons that gives rise to the other resonance structure. 4.
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Exam2A - Tuesday, March 17, 2009 CHM 2210 Sec. 4140 Exam #2...

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