Section e part 7 the selection of weak acids to make

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Section E. Part 7. The Selection of Weak Acids to Make Buffer Solutions of Desired pH Watch the video associated with this section and record your observations below. Read through this section in your Chemtrek and follow up with your TA with any questions. Briefly summarize the section.
Question 15: Considering Figure 14.6 (the number 10 –2 through 10 –10 are the K a values of the acids), what is the pH region of good buffer capacity for the titration with the acid having a K a = 1 × 10 –6 ?
6 Question 16: Report the pH values for your tests of the buffer capacity of the original and the 25% diluted buffer solutions. Which solution has the greater buffer capacity? Explain. How does dilution affect buffer capacity?
Section E. Part 8. Titration of Weak Bases with Strong Acids Watch the video associated with this section and record your observations below. It may be helpful to record your observation in a table. Read through this section in your Chemtrek and follow up with your TA with any questions. Briefly summarize the section. Question 17: Considering Figure 14.7, what are the K b and pK b of ammonia and the K a and pK a of the ammonium ion? Explain how you determined these values. Show calculations where relevant.

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