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Consider the titration curve shown in the box. Note: there are 3 questions that use this graph. 14 12 10 T 8 PH 6 4 2 0 20 40 60 80 Volume titrant
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Question

Plesse refer to the pictures;1.Which choice correctly describes the analyte? a.   strong acidb.   strong base

Select one:

c.   weak base

d.   weak acid

e.   non-electrolyte


2.If a buffer were to be made by stopping this titration at the half-way point, what pH would the buffer maintain?

Select one:

a.   3.0

b.   11.0

c.   4.7

d.   4.4

e.   8.5


3.When ~10-40 mL of titrant had been added, why could the analyte solution have acted as a buffer?

Select one:

a.   because the solution contained large concentrations of a strong acid-base conjugate pair

b.   because the solution contained low concentration of weak acid and excess strong base

c.   because the solution contained a large concentration of a weak base and no weak acid

d.   because the solution contained equal concentrations of hydronium and hydroxide ions

e.   because the solution contained large concentrations of a weak acid-base conjugate pair


Screen Shot 2020-06-18 at 2.35.08 PM.pngScreen Shot 2020-06-18 at 2.34.52 PM.pngScreen Shot 2020-06-18 at 2.34.43 PM.png

Screen Shot 2020-06-18 at 2.34.43 PM.png
Consider the titration curve shown in the box. Note: there are 3 questions that use this graph.
14
12
10
T
8
PH
6
4
2
0
20
40
60
80
Volume titrant added (ml) -
Which choice correctly describes the analyte?
Select one:
O
a. strong acid
b. strong base
c. weak base
d. weak acid
e. non-electrolyte
Screen Shot 2020-06-18 at 2.34.52 PM.png
Consider the titration curve shown in the box. Note: there are 3 questions that use this graph.
14
12
10
8
PH
6
A
2
0
20
40
60
80
Volume titrant added (ml) -
If a buffer were to be made by stopping this titration at the half-way point, what ph would the buffer maintain?
Select one:
a. 3.0
b. 11.0
C. 4.7
d. 4.4
O
e. 8.5
Screen Shot 2020-06-18 at 2.35.08 PM.png
Consider the titration curve shown in the box. Note: there are 3 questions that use this graph.
14
12
10
T
8
PH
6
4
2
0
20
40
60
80
Volume titrant added (ml) -
When ~10-40 mL of titrant had been added, why could the analyte solution have acted as a buffer?
Select one:
a. because the solution contained large concentrations of a strong acid-base conjugate pair
b. because the solution contained low concentration of weak acid and excess strong base
c. because the solution contained a large concentration of a weak base and no weak acid
d. because the solution contained equal concentrations of hydronium and hydroxide ions
O
e. because the solution contained large concentrations of a weak acid-base conjugate pair

Step-by-step answer

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usce dui


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Subject: Chemistry, Science

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