Homework Help is Here – Start Your Trial Now!
Science
Chemistry
i. The graph indicates the pH change during the titration of 20.0 cm³ of 0.100 mol dm-* of CH»COOH (aq)with 0.100 mol dmª KOH (aq). From the graph, identify the volume of KOH (aq) and the pH at the equivalence point. 14 13 Volume:, 12 11- pH: 10

i. The graph indicates the pH change during the titration of 20.0 cm³ of 0.100 mol dm-* of CH»COOH (aq)with 0.100 mol dmª KOH (aq). From the graph, identify the volume of KOH (aq) and the pH at the equivalence point. 14 13 Volume:, 12 11- pH: 10

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
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
See similar textbooks
icon
Related questions
Question
**Titration and pH Analysis** **8.)** **a.** **i.** The graph indicates the pH change during the titration of 20.0 cm³ of 0.100 mol dm⁻³ of CH₃COOH (aq) with 0.100 mol dm⁻³ KOH (aq). From the graph, identify the volume of KOH (aq) and the pH at the equivalence point. - **Volume:** ________________ - **pH:** ________________ **Explanation of the Graph:** The provided graph shows a typical titration curve with the x-axis labeled "Volume of KOH (aq) added / cm³" ranging from 0 to 50 cm³, and the y-axis labeled "pH" ranging from 1 to 14. The curve starts at a low pH value indicating the acidic nature of CH₃COOH. As KOH is added, the pH gradually increases until it sharply rises at the equivalence point, where the amount of KOH added neutralizes the acetic acid present. Beyond this point, adding more KOH results in a higher pH typical of a basic solution. **ii.** Sketch on the graph above, to indicate the change in pH during a titration of 25.0 cm³ of 0.100 mol dm⁻³ HNO₃ (aq) (Strong acid) with 0.100 mol dm⁻³ 0.100 KOH (aq) (strong base). On your graph, clearly indicate the starting pH value, the equivalence point, the pH at the equivalence point, and the final pH reached. (Describe the curve if you cannot sketch it). **Description of the Curve:** - **Starting pH Value:** Since HNO₃ is a strong acid, it will have an initial pH value close to 1. - **Equivalence Point:** The equivalence point in the titration of a strong acid with a strong base will occur at a pH of 7. - **Final pH:** Beyond the equivalence point, the addition of excess KOH will raise the pH significantly, approaching the strong base region around 13-14. Initially, as a strong acid like HNO₃ is titrated with KOH, the pH starts at a low value. The pH will rise
Transcribed Image Text:**Titration and pH Analysis** **8.)** **a.** **i.** The graph indicates the pH change during the titration of 20.0 cm³ of 0.100 mol dm⁻³ of CH₃COOH (aq) with 0.100 mol dm⁻³ KOH (aq). From the graph, identify the volume of KOH (aq) and the pH at the equivalence point. - **Volume:** ________________ - **pH:** ________________ **Explanation of the Graph:** The provided graph shows a typical titration curve with the x-axis labeled "Volume of KOH (aq) added / cm³" ranging from 0 to 50 cm³, and the y-axis labeled "pH" ranging from 1 to 14. The curve starts at a low pH value indicating the acidic nature of CH₃COOH. As KOH is added, the pH gradually increases until it sharply rises at the equivalence point, where the amount of KOH added neutralizes the acetic acid present. Beyond this point, adding more KOH results in a higher pH typical of a basic solution. **ii.** Sketch on the graph above, to indicate the change in pH during a titration of 25.0 cm³ of 0.100 mol dm⁻³ HNO₃ (aq) (Strong acid) with 0.100 mol dm⁻³ 0.100 KOH (aq) (strong base). On your graph, clearly indicate the starting pH value, the equivalence point, the pH at the equivalence point, and the final pH reached. (Describe the curve if you cannot sketch it). **Description of the Curve:** - **Starting pH Value:** Since HNO₃ is a strong acid, it will have an initial pH value close to 1. - **Equivalence Point:** The equivalence point in the titration of a strong acid with a strong base will occur at a pH of 7. - **Final pH:** Beyond the equivalence point, the addition of excess KOH will raise the pH significantly, approaching the strong base region around 13-14. Initially, as a strong acid like HNO₃ is titrated with KOH, the pH starts at a low value. The pH will rise
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Acid-Base Titrations
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
SEE MORE TEXTBOOKS