The following graph shows the pH curve for the titration of 25 mL of a 0.1 M monoprotic acid solution with a 0.1 M solution of a monoprotic base. 14 pH 12 10 8 6 4 2 0 I 0 5 10 15 20 25 30 35 40 45 50 mL of 0.1 M base added (1) The pH curve represents the titration of a (2) Choose a suitable indicator for the endpoint of the titration from the following pulldown list. 0 Malachite green Thymol blue Methyl orange Bromocresol green Methyl red Bromothymol blue Cresol red Phenolphthalein Thymolphthalein Alizarin yellow 0.2 1.8 pH 0 1 1.2 2 2.8 3 3.2 4.4 3.8 5.4 4 4.8 6.0 5 6.0 6 7.0 25 G 7 8.0 9.6 7.6 8.2 8 8.8 10.0 94 10.6 acid with a 10.1 12.0 9 10 11 12 13 14 base.

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**Educational Website Content**

### Titration of Monoprotic Acid with Monoprotic Base

**Graph Description:**

The graph displayed illustrates the pH curve for the titration process involving 25 mL of a 0.1 M monoprotic acid solution with a 0.1 M solution of a monoprotic base. The x-axis represents the volume of 0.1 M base added in milliliters (mL), ranging from 0 to 50 mL. The y-axis shows the pH level, varying from 0 to 14.

The curve initiates at a low pH, indicating the acidic nature of the solution, and rises as the base is added. There's a sharp increase in the curve around the midpoint, which represents the equivalence point, before leveling off at a higher pH.

1. **Titration Classification:**
   - **The pH curve represents the titration of a** _______ **acid with a** _______ **base.**

2. **Indicator Selection:**
   - **Choose a suitable indicator for the endpoint of the titration from the following pulldown list:**

**Indicator Chart Description:**

The chart provides a range of pH values for various indicators and their corresponding color changes:

- Malachite green: pH 0.2 - 1.8 (green to yellow)
- Thymol blue: pH 1.2 - 2.8 and 8.0 - 9.6 (red to yellow and yellow to blue)
- Methyl orange: pH 3.2 - 4.4 (red to yellow)
- Bromocresol green: pH 3.8 - 5.4 (yellow to blue-green)
- Methyl red: pH 4.8 - 6.0 (red to yellow)
- Bromothymol blue: pH 6.0 - 7.6 (yellow to blue)
- Cresol red: pH 7.0 - 8.8 (yellow to red)
- Phenolphthalein: pH 8.2 - 10.0 (colorless to pink)
- Thymolphthalein: pH 9.4 - 10.6 (colorless to blue)
- Alizarin yellow: pH 10.0 - 12.0 (yellow
Transcribed Image Text:**Educational Website Content** ### Titration of Monoprotic Acid with Monoprotic Base **Graph Description:** The graph displayed illustrates the pH curve for the titration process involving 25 mL of a 0.1 M monoprotic acid solution with a 0.1 M solution of a monoprotic base. The x-axis represents the volume of 0.1 M base added in milliliters (mL), ranging from 0 to 50 mL. The y-axis shows the pH level, varying from 0 to 14. The curve initiates at a low pH, indicating the acidic nature of the solution, and rises as the base is added. There's a sharp increase in the curve around the midpoint, which represents the equivalence point, before leveling off at a higher pH. 1. **Titration Classification:** - **The pH curve represents the titration of a** _______ **acid with a** _______ **base.** 2. **Indicator Selection:** - **Choose a suitable indicator for the endpoint of the titration from the following pulldown list:** **Indicator Chart Description:** The chart provides a range of pH values for various indicators and their corresponding color changes: - Malachite green: pH 0.2 - 1.8 (green to yellow) - Thymol blue: pH 1.2 - 2.8 and 8.0 - 9.6 (red to yellow and yellow to blue) - Methyl orange: pH 3.2 - 4.4 (red to yellow) - Bromocresol green: pH 3.8 - 5.4 (yellow to blue-green) - Methyl red: pH 4.8 - 6.0 (red to yellow) - Bromothymol blue: pH 6.0 - 7.6 (yellow to blue) - Cresol red: pH 7.0 - 8.8 (yellow to red) - Phenolphthalein: pH 8.2 - 10.0 (colorless to pink) - Thymolphthalein: pH 9.4 - 10.6 (colorless to blue) - Alizarin yellow: pH 10.0 - 12.0 (yellow
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