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Practice Midterm #2 - 1 Chemistry 102 Practice Midterm Last...

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1 Chemistry 102 Practice Midterm ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯ ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯ Last Name (please print) First Name ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯ ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯ Signature ID Number Instructions: 1. This exam has 5 questions . Make sure you have a complete exam and write your name on pages detached from the exam. 2. This is a closed-book examination. 3. Place your answers on the FRONT SIDE of each page and CLEARLY NOTE any work on the back side of a page. 4. Exams written in pencil are not eligible for re-grading . 5. You may use any approved calculators. Problem Maximum mark Mark received 1 10 2 8 3 9 4 8 5 8 Total
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2 1. (8 marks) (a) (3 marks) Determine if the following substances yield acidic, basic or neutral aqueous solutions: Lithium hypochlorite:_____________ NH 4 F : ______________ [CH 3 NH 3 ]CN : _______________ (b) (2 marks) Write the dominant acid/base equilibrium reaction for each of the following solutions: A solution was produced from adding NaClO 2 (s) to water: A 1.0 M solution of HCN (aq) is treated with an equal volume of 1.0 M NaOH (aq):
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