A buffer is prepared by adding 0.300mol of NaF to 1.00 L of 0.200 M HF. Calculate the pH of the resulting solution. Report your answer to two decimal places. ***Use the Ka value of 7.2 × 10-4 for HF *** How many moles of NaOH must be added to this buffer solution to change the pH by 0.38 units? Report your answer to two significant figures.
A buffer is prepared by adding 0.300mol of NaF to 1.00 L of 0.200 M HF. Calculate the pH of the resulting solution. Report your answer to two decimal places. ***Use the Ka value of 7.2 × 10-4 for HF *** How many moles of NaOH must be added to this buffer solution to change the pH by 0.38 units? Report your answer to two significant figures.
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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Transcribed Image Text:A buffer is prepared by adding 0.300mol of NaF to 1.00 L of 0.200 M HF.
Calculate the pH of the resulting solution. Report your answer to two decimal places.
***Use the Ka value of 7.2 × 10-4 for HF ***
How many moles of NaOH must be added to this buffer solution to change the pH by 0.38 units? Report your answer to two significant figures.
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