CHM116 Fa10 Week 4 disc prob

CHM116 Fa10 Week 4 disc prob - Week 4 discussion questions:...

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1. If you mix 0.1 mole of NaOH, 0.1 mole of CH 3 COOH, and 1.0 L of H 2 O, you will have a solution that is: (a) acidic (b) basic (c) neutral (d) pink 2. Which one of the following mixtures will be a buffer when dissolved in a liter of water? (a) 0.2 moles of NaOH and 0.2 moles of HBr (b) 0.2 moles of NaCl and 0.3 moles of HCl (c) 0.4 moles of CH 3 COOH and 0.2 moles of NaOH (d) 0.5 moles of NH 3 and 0.5 moles of HCl (e) 0.3 moles of KOH and 0.2 moles of HBr 3. Which of the following solutions would have the highest pH (assuming they all have the same concentration of acid in water)? Acid K a (a) CH 3 COOH 1.8 x 10 -5 (b) HNO 2 4.5 x 10 -4 (c) HOCl 3.0 x 10 -8 (d) HOCN 3.5 x 10 -4 • Be able to identify common strong acids and strong bases • Understand the relationship between an acid and its conjugate base (including K a and K b ; p K a and p K b ) • Recognize ionic salts that contain conjugates of weak acids or bases, and thus affect pH of aqueous solutions • Be able to find the
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This note was uploaded on 05/15/2011 for the course CHM 116 taught by Professor Matchett during the Fall '11 term at Grand Valley State University.

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CHM116 Fa10 Week 4 disc prob - Week 4 discussion questions:...

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