QUESTION 17 Why is the pH at the equivalence point greater than 7 when you titrate a weak acid with a strong base? O There is excess strong base at the equivalence point. The conjugate base that is formed at the equivalence point is a strong base. There is excess weak acid at the equivalence point. This statement is false because the pH is always 7 at an equivalence point in a pH titration. The conjugate base that is formed at the equivalence point reacts with water.
QUESTION 17 Why is the pH at the equivalence point greater than 7 when you titrate a weak acid with a strong base? O There is excess strong base at the equivalence point. The conjugate base that is formed at the equivalence point is a strong base. There is excess weak acid at the equivalence point. This statement is false because the pH is always 7 at an equivalence point in a pH titration. The conjugate base that is formed at the equivalence point reacts with water.
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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Question
17
Transcribed Image Text:start with? (Kb for NH3 is 1.8x10-)
Express your answer to tvo decimal places and include the unit with your answer.
QUESTION 17
Why is the pH at the equivalence point greater than 7 when you titrate a weak acid with a strong base?
O There is excess strong base at the equivalence point.
The conjugate base that is formed at the equivalence point is a strong base.
There is excess weak acid at the equivalence point.
O This statement is false because the pH is always 7 at an equivalence point in a pH titration.
The conjugate base that is formed at the equivalence point reacts with water.
QUESTION 18
Order the following solutions from lowest pH to highest pH.
i. 0.10M NACIO
ji. 0.10M KBr
ii. 0.10M NH4CIO4
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