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.**Graph Explanation:**- **X-Axis:** mL of 0.1 M base added (ranging from 0 to 50).- **Y-Axis:** pH (ranging from 0 to 14).- The curve starts with a low pH, then increases sharply, indicating the equivalence point, and eventually levels off.---1. The pH curve represents the titration of a _[select]_ acid with a _[select]_ base.2. Choose a suitable indicator for the endpoint of the titration from the following pulldown list.**Indicator Chart Explanation:**- **Malachite green**: Changes from pH 0.2 to 1.8- **Thymol blue**: Changes from pH 1.2 to 2.8 and 8.0 to 9.6- **Methyl orange**: Changes from pH 3.2 to 4.4- **Bromocresol green**: Changes from pH 3.8 to 5.4- **Methyl red**: Changes from pH 4.8 to 6.0- **Bromothymol blue**: Changes from pH 6.0 to 7.6- **Cresol red**: Changes from pH 7.0 to 8.8- **Phenolphthalein**: Changes from pH 8.2 to 10.0- **Thymolphthalein**: Changes from pH 9.4 to 10.6- **Alizarin yellow**: Changes from pH 10.1 to 12.0Each indicator changes color at a specific pH range, helping identify the endpoint in the titration process.

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 ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ 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. V Malachite green Thymol blue Methyl orange Bromocresol green Methyl red Bromothymol blue Cresol red Phenolphthalein Thymolphthalein Alizarin yellow pH 0 1.2 1.8 3.2 4.4 3.8 5.4 4 4.8 6.0 6.0 7.0 5 6 7 8.0 9.6 7.6 8.2 8.8 94 Vacid with a 10.0 10.6 10.1 8 9 10 11 V base. 12.0 12 13 14

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 ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ 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. V Malachite green Thymol blue Methyl orange Bromocresol green Methyl red Bromothymol blue Cresol red Phenolphthalein Thymolphthalein Alizarin yellow pH 0 1.2 1.8 3.2 4.4 3.8 5.4 4 4.8 6.0 6.0 7.0 5 6 7 8.0 9.6 7.6 8.2 8.8 94 Vacid with a 10.0 10.6 10.1 8 9 10 11 V base. 12.0 12 13 14

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Concept explainers

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.

Question

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.

**Graph Explanation:**
- **X-Axis:** mL of 0.1 M base added (ranging from 0 to 50).
- **Y-Axis:** pH (ranging from 0 to 14).
- The curve starts with a low pH, then increases sharply, indicating the equivalence point, and eventually levels off.

---

1. The pH curve represents the titration of a _[select]_ acid with a _[select]_ base.

2. Choose a suitable indicator for the endpoint of the titration from the following pulldown list.

**Indicator Chart Explanation:**
- **Malachite green**: Changes from pH 0.2 to 1.8
- **Thymol blue**: Changes from pH 1.2 to 2.8 and 8.0 to 9.6
- **Methyl orange**: Changes from pH 3.2 to 4.4
- **Bromocresol green**: Changes from pH 3.8 to 5.4
- **Methyl red**: Changes from pH 4.8 to 6.0
- **Bromothymol blue**: Changes from pH 6.0 to 7.6
- **Cresol red**: Changes from pH 7.0 to 8.8
- **Phenolphthalein**: Changes from pH 8.2 to 10.0
- **Thymolphthalein**: Changes from pH 9.4 to 10.6
- **Alizarin yellow**: Changes from pH 10.1 to 12.0

Each indicator changes color at a specific pH range, helping identify the endpoint in the titration process.

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