Section e part 6 the dilution of buffers question 12

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Question 12: Report how many drops of NaOH you used to prepare your buffer solution and report the pH measured for this buffer solution. Based on the titration curve in Figure 14.4 and your table from Q8, is this the pH that you expected? Explain.
Section E. Part 6. The Dilution of Buffers Watch the video associated with this section, read along in your Chemtrek, and summarize this section. There are several observations you should be able to make in this section. Make sure to record these observations below. To create the buffer with a 1:1 ratio, you add 20 drops of each CH3COONa and CH3COOH. In a 1x12 strip add the original buffer and diluted buffer. Then place some universal indicator in the two samples. The original buffer and dilute buffer both have the same color (light yellow) which is pH of 5.
4 Question 13: Explain how you made both the “original” and the 25% as concentrated buffer solutions (give amounts). Report the pH values obtained for your original and 25% dilution buffer solutions. Considering these experimental results, what is the effect of dilution on the pH of buffer solutions?
Question 14: Consider Figure 14.5. For each curve the concentration of acid and base are the same, e.g., the curve labeled 1 M is for the titration of 5 drops of 1 M weak acid with 1 M NaOH. Why are the titration curves for the different reagent concentrations so similar in the buffer region? Are these solutions all buffers? Explain.
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