A buffer was made by mixing 0.1500 moles of HOBr with 0.1296 moles of NaOBr and diluting to exactly 1 liter. What will be the pH after addition of 10.00 mL of 0.3216 M RbOH to 50.00 mL of the buffer? K a(HOBr) = 2.000e-9. Note: only a portion of the original buffer is used in the second part of the problem.

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter15: Acid-base Equilibria
Section: Chapter Questions
Problem 121CP: A buffer is made using 45.0 mL of 0.750 M HC3H5O2 (Ka = 1.3 105) and 55.0 mL of 0.700 M NaC3H5O2....
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A buffer was made by mixing 0.1500 moles of HOBr with 0.1296 moles of NaOBr and diluting to exactly 1 liter. What will be the pH after addition of 10.00 mL of 0.3216 M RbOH to 50.00 mL of the buffer? K a(HOBr) = 2.000e-9. Note: only a portion of the original buffer is used in the second part of the problem.

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