A chemistry graduate student is given 100. mL of a 0.30M acetic acid (HCH,CO₂) solution. Acetic acid is a weak acid with K-1.8 x 105. What mass of KCH,CO, should the student dissolve in the HCH,CO₂ solution to turn it into a buffer with pH =4.62? You may assume that the volume of the solution doesn't change when the KCH,CO₂ is dissolved in it. Be sure your answer has a unit symbol, and round it to 2 significant digits. 10 0.8 X G
A chemistry graduate student is given 100. mL of a 0.30M acetic acid (HCH,CO₂) solution. Acetic acid is a weak acid with K-1.8 x 105. What mass of KCH,CO, should the student dissolve in the HCH,CO₂ solution to turn it into a buffer with pH =4.62? You may assume that the volume of the solution doesn't change when the KCH,CO₂ is dissolved in it. Be sure your answer has a unit symbol, and round it to 2 significant digits. 10 0.8 X G
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A chemistry graduate student is given 100. mL of a 0.30M acetic acid (HCH,CO₂) solution. Acetic acid is a weak acid with K-1.8 x 105. What mass of
KCH,CO, should the student dissolve in the HCH,CO₂ solution to turn it into a buffer with pH = 4.62?
0
You may assume that the volume of the solution doesn't change when the KCH, CO₂ is dissolved in it. Be sure your answer has a unit symbol, and round it to 2
significant digits.
Explanation
7
A
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Transcribed Image Text:A ALEKS-Lave Atthawadi-Le
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Reading Schedule
24 Solubility and 18.3 Gibbs Free E.5.3 Enthalpies of... 18.5 Gibbs Free E... Reading Schedule
O ACIDS AND BASES
Calculating the composition of a buffer of a given pH
E
esc
Slide 46 of 105
A chemistry graduate student is given 100. mL of a 0.30M acetic acid (HCH,CO₂) solution. Acetic acid is a weak acid with K-1.8 x 105. What mass of
KCH,CO, should the student dissolve in the HCH,CO₂ solution to turn it into a buffer with pH = 4.62?
0
You may assume that the volume of the solution doesn't change when the KCH, CO₂ is dissolved in it. Be sure your answer has a unit symbol, and round it to 2
significant digits.
Explanation
7
A
Notes
Z
@
2
Check
0.9
Comments
S
#
3
H
X
::
E
D
3
4
C
1110+
>
R
F
5
V
I
T
G
79%
6
3
B
MacBook Pro
Y
4
19.6 Reduction Po... Y SOLUTION: The le... Math 115 W-S Fall...
Po...
19.6 Reduction
I'm
H
Corporate
Development
Investor Relations
7
U
N
8
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Study 101
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