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LAD G2 (9g 2 of 5) What % of vinegar is really HC:H3O?? What is the K. of acetic acid? 3. The graph shown below is a representation of a titration of both a weak acid and strong acid, with a strong base. Answer the following questions on the graph and in the space below. (a) Mark the oquivalence point and indicate the pH for each of the two curves at the equivalence point. (b) Clearly indicate which is weak and which is strong. Explain how you know?

LAD G2 (9g 2 of 5) What % of vinegar is really HC:H3O?? What is the K. of acetic acid? 3. The graph shown below is a representation of a titration of both a weak acid and strong acid, with a strong base. Answer the following questions on the graph and in the space below. (a) Mark the oquivalence point and indicate the pH for each of the two curves at the equivalence point. (b) Clearly indicate which is weak and which is strong. Explain how you know?

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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LAD G2 (pg 2 of 5) What % of vinegar is really HC:H3O:? What is the Ka of acetic acid? 3. The graph shown below is a representation of a titration of both a weak acid and strong acid, with a strong base. Answer the following questions on the graph and in the space below. (a) Mark the equivalence point and indicate the pH for each of the two curves at the equivalence point. (b) Clearly indicate which is weak and which is strong. Explain how you know? (e) How is the pk, of an indicator helpful? Explain why all of the indicators would be acceptable for one of the titrations (which one?), but not for the other titration? (d) What is the value of the K, for the WA on the graph below. Explain/show the casiest way to estimate the Ka of the weak acid from this graph? Be sure and mark and label on the graph as to any data you used to do this. 12 10- phenolphthalein pk.-9.1 8 - bromthymol blue PH methyl red pk.-5.1 4. Vol of NaOH added (ml) 6.
Transcribed Image Text:LAD G2 (pg 2 of 5) What % of vinegar is really HC:H3O:? What is the Ka of acetic acid? 3. The graph shown below is a representation of a titration of both a weak acid and strong acid, with a strong base. Answer the following questions on the graph and in the space below. (a) Mark the equivalence point and indicate the pH for each of the two curves at the equivalence point. (b) Clearly indicate which is weak and which is strong. Explain how you know? (e) How is the pk, of an indicator helpful? Explain why all of the indicators would be acceptable for one of the titrations (which one?), but not for the other titration? (d) What is the value of the K, for the WA on the graph below. Explain/show the casiest way to estimate the Ka of the weak acid from this graph? Be sure and mark and label on the graph as to any data you used to do this. 12 10- phenolphthalein pk.-9.1 8 - bromthymol blue PH methyl red pk.-5.1 4. Vol of NaOH added (ml) 6.
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