Using the table of indicators identify which of the given indicators would be appropriate for the titration represented in the titration curve. 2,4,6-trinitrotoluene ☐quinaldine red metacresol purple malachite green thymol blue alizarin yellow R 13 12 11 10 9 8 pH 7 6 5 NWAC 4 3 2 1 0 2 4 Titration Curve 6 8 10 12 14 Volume of Titrant (mL) 16 18 20

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**Educational Content on Titration Curves and Indicators**

The image presents an educational exercise focusing on the selection of appropriate indicators for a titration process, based on the provided titration curve. Below is a detailed description of the content:

### Text Description:
1. **Instructions:**
   - Using the [table of indicators](#), identify which of the given indicators would be appropriate for the titration represented in the titration curve.

2. **List of Indicators:**
   - 2,4,6-trinitrotoluene
   - quinaldine red
   - metacresol purple
   - malachite green
   - **thymol blue** [checked]
   - alizarin yellow R

### Graph Description:
1. **Title:** 
   - Titration Curve

2. **Axes:**
   - **Horizontal Axis (X-axis):** Volume of Titrant (mL), ranging from 0 to 20.
   - **Vertical Axis (Y-axis):** pH, ranging from 0 to 14.

3. **Curve Details:**
   - The red line represents the titration curve.
   - It starts at a high pH (around 13) at 0 mL of titrant.
   - The pH remains relatively constant until about 10 mL of titrant is added.
   - A sharp drop in pH is observed between 10 mL and 12 mL, indicating the equivalence point.
   - After the drop, the curve levels off around a pH of 2 to 3.

### Explanation:
In this scenario, thymol blue has been identified as the appropriate indicator choice. The reasoning is based on matching the pH range of the indicator with the steep change in pH observed in the titration curve. The sharp decline in pH signifies the equivalence point, which is crucial for the selection of a suitable indicator in acid-base titrations.

This exercise helps learners understand the importance of choosing the right indicator by analyzing the titration curve, ensuring accurate determination of the endpoint in titration experiments.
Transcribed Image Text:**Educational Content on Titration Curves and Indicators** The image presents an educational exercise focusing on the selection of appropriate indicators for a titration process, based on the provided titration curve. Below is a detailed description of the content: ### Text Description: 1. **Instructions:** - Using the [table of indicators](#), identify which of the given indicators would be appropriate for the titration represented in the titration curve. 2. **List of Indicators:** - 2,4,6-trinitrotoluene - quinaldine red - metacresol purple - malachite green - **thymol blue** [checked] - alizarin yellow R ### Graph Description: 1. **Title:** - Titration Curve 2. **Axes:** - **Horizontal Axis (X-axis):** Volume of Titrant (mL), ranging from 0 to 20. - **Vertical Axis (Y-axis):** pH, ranging from 0 to 14. 3. **Curve Details:** - The red line represents the titration curve. - It starts at a high pH (around 13) at 0 mL of titrant. - The pH remains relatively constant until about 10 mL of titrant is added. - A sharp drop in pH is observed between 10 mL and 12 mL, indicating the equivalence point. - After the drop, the curve levels off around a pH of 2 to 3. ### Explanation: In this scenario, thymol blue has been identified as the appropriate indicator choice. The reasoning is based on matching the pH range of the indicator with the steep change in pH observed in the titration curve. The sharp decline in pH signifies the equivalence point, which is crucial for the selection of a suitable indicator in acid-base titrations. This exercise helps learners understand the importance of choosing the right indicator by analyzing the titration curve, ensuring accurate determination of the endpoint in titration experiments.
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