言 云 7. Tools Window Help Thu Oct 28 9:33 A c163_5_CA21_f20 Titration Curves TAV v1.0.pdf Page 1 of 3 Q Search The Model In an acid-base titration, a strong acid (or base) titrant (i.e., the solution in the buret) is added to a base (or acid). As this is being done he pH of the solution is monitored. A titration curve is generated by plotting the solution's pH versus the volume of the added titrant (Figure 1). At the equivalence point, the number of "equivalents" (or moles if the acid is monoprotic) of acid is exactly equal to the number of equivalents of base. Thus, at the equivalence point the titrated solution is "neutralized" 14 Titration Curve 1 Z Hd 66 14 Titration Curve 2 Hd (stoichiometrically speaking - the pH need not be 7). The equivalence point is identified as the point where the titration curve has the greatest slope (which may be either positive or negative). | Volume of added titrant Figure 1. Two examples of titration curves where pH (the dependent variable on the y-axis) is plotted versus the volume of titrant added (the independent variable on the x-axis). Key Questions 1. Consider a reaction between a monoprotic weak acid and a strong base. a. Complete the net ionic neutralization reaction that occurs. HA(aq) + OH(aq) → OCT 28 MacBook Air DD F7 08 F4 F5 F8 F10 F11 F12 63 会。 * 00 ols Window Help Thu Oct 28 c163_5_CA21_f20 Titration Curves TAV v1.0.pdf Page 1 of 3 Q Search Key Questions 1. Consider a reaction between a monoprotic weak acid and a strong base. a. Complete the net ionic neutralization reaction that occurs. HA(aq) + OH(aq) → b. (Circle the bolded underlined words that make the following statements true.) At the equivalence point, there is a(n) acid / base present in solution, so the pH is below / above 7. This agrees with Titration Curve 1/2 in Figure 1 of the Model. Adapted from Active Learning Activities developed by Prof. Ken Martin at Berry College T.A.Vannelli, WCC 10-27-2020 Page 1 of 3 CHEM&163 ChemActivity 5: Titration Curves 2. Consider a reaction between a monoprotic weak base and a strong acid. a. Complete the net ionic neutralization reaction that occurs. + (bv),O°H + (bv OCT 28 MacBook Air 08 F3 币 F5 DD F7 F12 F10 F8 F4 & ( V 一 23 $ 8. 6 3. } 1 { [ R |
言 云 7. Tools Window Help Thu Oct 28 9:33 A c163_5_CA21_f20 Titration Curves TAV v1.0.pdf Page 1 of 3 Q Search The Model In an acid-base titration, a strong acid (or base) titrant (i.e., the solution in the buret) is added to a base (or acid). As this is being done he pH of the solution is monitored. A titration curve is generated by plotting the solution's pH versus the volume of the added titrant (Figure 1). At the equivalence point, the number of "equivalents" (or moles if the acid is monoprotic) of acid is exactly equal to the number of equivalents of base. Thus, at the equivalence point the titrated solution is "neutralized" 14 Titration Curve 1 Z Hd 66 14 Titration Curve 2 Hd (stoichiometrically speaking - the pH need not be 7). The equivalence point is identified as the point where the titration curve has the greatest slope (which may be either positive or negative). | Volume of added titrant Figure 1. Two examples of titration curves where pH (the dependent variable on the y-axis) is plotted versus the volume of titrant added (the independent variable on the x-axis). Key Questions 1. Consider a reaction between a monoprotic weak acid and a strong base. a. Complete the net ionic neutralization reaction that occurs. HA(aq) + OH(aq) → OCT 28 MacBook Air DD F7 08 F4 F5 F8 F10 F11 F12 63 会。 * 00 ols Window Help Thu Oct 28 c163_5_CA21_f20 Titration Curves TAV v1.0.pdf Page 1 of 3 Q Search Key Questions 1. Consider a reaction between a monoprotic weak acid and a strong base. a. Complete the net ionic neutralization reaction that occurs. HA(aq) + OH(aq) → b. (Circle the bolded underlined words that make the following statements true.) At the equivalence point, there is a(n) acid / base present in solution, so the pH is below / above 7. This agrees with Titration Curve 1/2 in Figure 1 of the Model. Adapted from Active Learning Activities developed by Prof. Ken Martin at Berry College T.A.Vannelli, WCC 10-27-2020 Page 1 of 3 CHEM&163 ChemActivity 5: Titration Curves 2. Consider a reaction between a monoprotic weak base and a strong acid. a. Complete the net ionic neutralization reaction that occurs. + (bv),O°H + (bv OCT 28 MacBook Air 08 F3 币 F5 DD F7 F12 F10 F8 F4 & ( V 一 23 $ 8. 6 3. } 1 { [ R |
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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Need help with these two questions
Transcribed Image Text:言
云
7.
Tools
Window
Help
Thu Oct 28 9:33 A
c163_5_CA21_f20 Titration Curves TAV v1.0.pdf
Page 1 of 3
Q Search
The Model
In an acid-base titration, a strong acid (or
base) titrant (i.e., the solution in the
buret) is added to a base (or acid). As this
is being done he pH of the solution is
monitored. A titration curve is generated
by plotting the solution's pH versus the
volume of the added titrant (Figure 1). At
the equivalence point, the number of
"equivalents" (or moles if the acid is
monoprotic) of acid is exactly equal to
the number of equivalents of base. Thus,
at the equivalence point the titrated
solution is "neutralized"
14
Titration Curve 1
Z Hd
66
14
Titration Curve 2
Hd
(stoichiometrically speaking - the pH
need not be 7). The equivalence point is
identified as the point where the titration
curve has the greatest slope (which may
be either positive or negative).
|
Volume of added titrant
Figure 1. Two examples of titration curves where pH (the dependent
variable on the y-axis) is plotted versus the volume of titrant added
(the independent variable on the x-axis).
Key Questions
1. Consider a reaction between a monoprotic weak acid and a strong base.
a. Complete the net ionic neutralization reaction that occurs.
HA(aq) + OH(aq) →
OCT
28
MacBook Air
DD
F7
08
F4
F5
F8
F10
F11
F12
63
Transcribed Image Text:会。
* 00
ols
Window
Help
Thu Oct 28
c163_5_CA21_f20 Titration Curves TAV v1.0.pdf
Page 1 of 3
Q Search
Key Questions
1. Consider a reaction between a monoprotic weak acid and a strong base.
a. Complete the net ionic neutralization reaction that occurs.
HA(aq) + OH(aq) →
b. (Circle the bolded underlined words that make the following statements true.) At the equivalence
point, there is a(n) acid / base present in solution, so the pH is below / above 7. This agrees
with Titration Curve 1/2 in Figure 1 of the Model.
Adapted from Active Learning Activities developed by Prof. Ken Martin at Berry College
T.A.Vannelli, WCC 10-27-2020
Page 1 of 3
CHEM&163
ChemActivity 5: Titration Curves
2. Consider a reaction between a monoprotic weak base and a strong acid.
a. Complete the net ionic neutralization reaction that occurs.
+ (bv),O°H + (bv
OCT
28
MacBook Air
08
F3
币
F5
DD
F7
F12
F10
F8
F4
&
(
V
一
23
$
8.
6
3.
}
1
{
[
R
|
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