Report the largest pK for the weak acid whose titration curve is shown. PH [OH ]

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**Question 21**

Report the largest pK for the weak acid whose titration curve is shown.

**Graph Description:**

The graph displays a titration curve of a weak acid. The x-axis is labeled with the concentration of hydroxide ions \([OH^-]\), and the y-axis is labeled with pH values. The curve begins at a pH below 7 and slopes upwards, showing an increase in pH as \([OH^-]\) increases. It has distinct regions, including a buffer region (where the curve flattens), indicating the pKa, where the weak acid is halfway neutralized. After this point, the curve shows a steeper increase in pH as more base is added.

Please report the largest pKa value observed in this titration curve.
Transcribed Image Text:**Question 21** Report the largest pK for the weak acid whose titration curve is shown. **Graph Description:** The graph displays a titration curve of a weak acid. The x-axis is labeled with the concentration of hydroxide ions \([OH^-]\), and the y-axis is labeled with pH values. The curve begins at a pH below 7 and slopes upwards, showing an increase in pH as \([OH^-]\) increases. It has distinct regions, including a buffer region (where the curve flattens), indicating the pKa, where the weak acid is halfway neutralized. After this point, the curve shows a steeper increase in pH as more base is added. Please report the largest pKa value observed in this titration curve.
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The titration curve given is,

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