9. 15.00 mL of 0.100 M NaOH are added to 50.00 mL of a buffer solution containing 1.0 mmol CH3CO0H and 1.0 mmol CH3CO0. What is the new solution pH? (а) 11.89 (b) 2.11 (c) 7.87 (d) Can't tell / need more info.

9. 15.00 mL of 0.100 M NaOH are added to 50.00 mL of a buffer solution containing 1.0 mmol CH3CO0H and 1.0 mmol CH3CO0. What is the new solution pH? (а) 11.89 (b) 2.11 (c) 7.87 (d) Can't tell / need more info.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

9. 15.00 mL of 0.100 M NaOH are added to 50.00 mL of a buffer solution containing 1.0 mmol CH3CO0H
and 1.0 mmol CH3CO0. What is the new solution pH?
(а) 11.89
(b) 2.11
(c) 7.87
(d) Can't tell / need more info.

Expert Solution

Step 1

Mmoles of NaOH = molarity * volume ( in ml )

= 0.100 * 15.00

= 1.5 mmoles

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