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5 - UNIVERSITY CHEMISTRY 2 Spring 2010 Project#6 NAMES 1...

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Unformatted text preview: UNIVERSITY CHEMISTRY 2 Spring, 2010 Project #6 NAMES: 1. Order the following solutions in order of increasing pH. Assume the same concentration in each case. HINT: The K. for H0102 = 1.1x10‘2 The Kb for NH3 = 1.8x10'5. 1.KCI04 2. NH4CIO4 3. KCIo2 4. HCIo4 2. You add 5.0 ml of 2.3 M NaOH solution to 100 ml of a buffer solution that is 0.50 M chlorous acid and 0.50 M sodium chlorite. What is the pH of this buffer solution after the addition of the sodium hydroxide? HINT: HCIo2 has a Ka =1.1x10'2 3. Draw each of the following: - a) 3-chlorocyclohexene b) 4-methyl-2-hexyne c) cis-5-ethyl-3-octene UNIVERSITY CHEMISTRY 2 Spring, 2010 Project #6 NAMES: 1. Calculate the pH of a solution when 80.0 ml of 0.350 M benzoic acid (Ka = 6.3 x 10-5) is titrated with 136 ml of 0.500 M sodium hydroxide. 2. 30 ml of 6 M hydrochloric acid is added to 700 ml of buffer that is 0.36 M lactic acid (K. = 1.38 x 10") and 0.4 M sodium lactate. What is the pH of the buffer after the addition of the acid? 3. Identify each functional group below: ' CH30 C A F V , H HO B J O Vanillin ...
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