Post-lab: plot pH values (y-axis) against total volume of added NaOH. From the graph find equivalence point, determine pH at half-equivalence point. Calculate Ka value of the unknown weak acid. Show calculations, include in your lab report.

Post-lab: plot pH values (y-axis) against total volume of added NaOH. From the graph find equivalence point, determine pH at half-equivalence point. Calculate Ka value of the unknown weak acid. Show calculations, include in your lab report.

Introduction to General, Organic and Biochemistry

11th Edition

ISBN:9781285869759

Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Publisher:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Chapter20: Carbohydrates

Section: Chapter Questions

Problem 20.86P

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Concept explainers

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.

Question

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This my graph and data, help me find the 1) half equivalent point from the graph(a and b) 2)The Ph of the half equivalent point from the graph (a and b) 3) calculate each ka (a and b)

Etc.
Post-lab: plot pH values (y-axis) against total volume of
added NaOH. From the graph find equivalence point,
determine pH at half-equivalence point. Calculate Ka
value of the unknown weak acid. Show calculations,
include in your lab report.

Pan
Oerva W HA M d
Ohaios aH Heten T v MaOH
344
344
18
55
20
1.0
4.0
sa
14
18
11
12
18
110
13
.20
13
1.0
124
14
10
13.0
13
10
140
T
14a
18
18
10
17
0.2
02
B34
144
1142
observed pH par rapport à Total Val of
NeOH ml
observed pH par rapport a Tatal Vol of NaOH mL
17
20
40 a0 Ro 100
120 14 1I50
1D
15
Tot Vela Naal(iaddee

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