Suppose 12.0 mL of an unknown weak base (B) is titrated with 0.100 M HCI. The unknown base reacts with HCI according to this general equation B+ HCI-BHCI Determine the requested characteristics of the unknown weak base from the given plot of its titration Titration of Unknown Base 12.0 11.0 10.0 9.0 8.0 7.0 60 5.0 4.0 3.0 2.0 1.0 10.0 15.0 20.0 Volume of HC (m) 0.0 0.0 5.0 25.0 30.0

Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
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Chapter15: Acid–base Equilibria
Section: Chapter Questions
Problem 56P
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Suppose 12.0 mL of an unknown weak base (B) is titrated with 0.100 M HCI. The unknown base reacts with HCI according to this general equation
B+ HCI-BHCI
Determine the requested characteristics of the unknown weak base from the given plot of its titration.
Titration of Unknown Base
12.0
11.0
10.0
9.0
0.0
5.0
10.0
15.0
20.0
25.0
30.0
Volume of HC1 (ml)
What is the volume of titrant needed to reach the half equivalence point? 1
What is the pH at the half equivalence point? 1
What is the pk, of the unknown base? 1
What is the K, of the unknown base? 1
BO
7.0
6.0
5.0
4,0
3.0
2.0
1.0
0.0
mL
Transcribed Image Text:Suppose 12.0 mL of an unknown weak base (B) is titrated with 0.100 M HCI. The unknown base reacts with HCI according to this general equation B+ HCI-BHCI Determine the requested characteristics of the unknown weak base from the given plot of its titration. Titration of Unknown Base 12.0 11.0 10.0 9.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 Volume of HC1 (ml) What is the volume of titrant needed to reach the half equivalence point? 1 What is the pH at the half equivalence point? 1 What is the pk, of the unknown base? 1 What is the K, of the unknown base? 1 BO 7.0 6.0 5.0 4,0 3.0 2.0 1.0 0.0 mL
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