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SPRING BREAK PRACTICE I

# SPRING BREAK PRACTICE I - Calculate the K b for aniline 4...

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Tuesday, March 15, 2011 – SPRING BREAK PRACTICE ! =] 1. Gaseous NOCl is placed in a container, exerting a pressure of 1.50 atm before reaction. What is the pressure of C l 2 at equilibrium? 2NOCl(g)      2NO(g) + Cl 2 (g) Kp = 7.14 x 10 -6   2. The pH of a 0.25 M solution of a weak acid, HA, is found to be 2.31. The K a of the acid is? 3. Aniline, C 6 H 5 NH 2 , is a weak base in aqueous solution. 0.50 M C 6 H 5 NH 2 has pH of 9.14.

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Unformatted text preview: Calculate the K b for aniline. 4. What is the pH of an aqueous solution prepared by adding 0.040 moles of NaOH to 1.00 liter of 0.10 M CH 3 COOH solution? Assume no change in volume. K a = 1.8 x 10-5 for CH 3 COOH 5. What mass of NaF (MW=41g/mol) should be added to 1.0 L of 1.90 M HF solution (K a = 7.2 x 10-4 ) to prepare a buffer solution of pH = 3.35? (Assume no volume change)...
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SPRING BREAK PRACTICE I - Calculate the K b for aniline 4...

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