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CHM 1046.CHAPTER 17 &amp; 18 (3)

# CHM 1046.CHAPTER 17 &amp; 18 (3) - CHM 1046 CHAPTER 16...

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CHM 1046 - CHAPTER 16 & 17 INSTRUCTOR: DR MUSA, M.A 1. Calculate the percentage ionization of 0.0075 M butanoic acid (Ka = 1.5 x10 -5 ) 2. Phenolphthalein may be used as an indicator for the titration of: 3. In a solution prepared by mixing equal volumes of 0.20 M acetic acid and 0.20 M hydrobromic acid, the common ion is: 4. Determine the pH of the following solution. Initial concentrations are given. [HC 2 H 3 O 2 ] = 0.250 M, [HCl] = 0.120 M [K a = 1.8 x 10 -5 ] 5. Calculate [Cr 3+ ] in equilibrium wit Cr(OH) 4 - when 0.010mol of Cr(NO 3 ) 3 is dissolved in a liter of solution buffered at pH 10.0. 6. Determine the [F - ] of the following solution. Initial concentrations are given. [HF] = 1,296 M, [NaF] = 1.045 M, Ka for HF is 6.6 x 10

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