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performed by placing a 10.00 mL solution in an Erlenmeyer flask and titrating it with 0.1250 M titrant.  Which of the following indicators would you use for the above titration?

performed by placing a 10.00 mL solution in an Erlenmeyer flask and titrating it with 0.1250 M titrant.  Which of the following indicators would you use for the above titration?

Chemistry
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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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The following titration was performed by placing a 10.00 mL solution in an Erlenmeyer flask and titrating it with 0.1250 M titrant. 

Which of the following indicators would you use for the above titration?


Methyl orange, pKIn= 3.8
Bromocresel green, pKIn= 4.6
Thymol blue, pKIn= 8.6
Nitramine, pKIn = 12.0
**Titration Curve Analysis** This graph is a titration curve illustrating the relationship between pH levels and the volume of titrant added in milliliters (mL). **Axes:** - The x-axis represents the volume of titrant added, ranging from 0 to 45 mL. - The y-axis shows the pH scale, spanning from 0 to 14. **Curve Description:** The curve begins at a low pH value, indicating an acidic solution. As the titrant is added, the pH increases gradually until around 25 mL, where a sharp rise occurs. This point typically represents the equivalence point, where the amount of titrant is stoichiometrically equivalent to the substance in the sample. After this steep rise, the curve levels off again, showing a high pH value, indicative of a basic solution. **Significance:** The equivalence point suggests a significant change in the solution’s properties, useful for determining the concentration of an unknown sample. The initial and final plateaus indicate the change from acidic to basic conditions through the titration process. Understanding such curves is crucial in various scientific and industrial applications, including chemistry and biochemistry fields.
Transcribed Image Text:**Titration Curve Analysis** This graph is a titration curve illustrating the relationship between pH levels and the volume of titrant added in milliliters (mL). **Axes:** - The x-axis represents the volume of titrant added, ranging from 0 to 45 mL. - The y-axis shows the pH scale, spanning from 0 to 14. **Curve Description:** The curve begins at a low pH value, indicating an acidic solution. As the titrant is added, the pH increases gradually until around 25 mL, where a sharp rise occurs. This point typically represents the equivalence point, where the amount of titrant is stoichiometrically equivalent to the substance in the sample. After this steep rise, the curve levels off again, showing a high pH value, indicative of a basic solution. **Significance:** The equivalence point suggests a significant change in the solution’s properties, useful for determining the concentration of an unknown sample. The initial and final plateaus indicate the change from acidic to basic conditions through the titration process. Understanding such curves is crucial in various scientific and industrial applications, including chemistry and biochemistry fields.
Expert Solution
Step 1

Indicator is the weak acids and weak bases which changes colors at end point. 

From the titration curve ,pH at equivalent point range is 6 to 10.3 .

 

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