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.

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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.
Transcribed Image Text: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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