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Standard X
Chemistry
Electrolysis and Electrolytes
17. In a cont...
Question
17. In a container, 1L of aqueous CH3COOH is present and pH of this solution is 3. Now 2g charcoal is added in this container and pH of CH3COOH solution become 4. the mass of CH3COOH adsorbed per gram of charcoal is
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Q.
One gram of charcoal adsorbs
C
H
3
C
O
O
H
from
100
mL
of
0.6
M
C
H
3
C
O
O
H
aqueous solution to form a monolayer, and thereby the molarity of
C
H
3
C
O
O
H
reduces to
0.58
. Calculate the surface area of the charcoal adsorbed by each molecule of acetic acid. Surface area of charcoal per gram
=
3.0
×
10
2
m
2
. Take
N
A
=
6
×
10
23
Q.
1 g of charcoal adsorbs
C
H
3
C
O
O
H
from
100
mL
of
0.6
M
C
H
3
C
O
O
H
aqueous solution to form a monolayer, and the molarity of
C
H
3
C
O
O
H
reduces to
0.58
in this process. Calculate the surface area of the charcoal adsorbed by each molecule of acetic acid.
Surface area of charcoal =
3.0
×
10
2
m
2
/
g
Q.
One gram of charcoal adsorbs
C
H
3
C
O
O
H
from
100
mL
of
0.6
M
C
H
3
C
O
O
H
aqueous solution to form a monolayer, and thereby the molarity of
C
H
3
C
O
O
H
reduces to
0.58
. Calculate the surface area of the charcoal adsorbed by each molecule of acetic acid. Surface area of charcoal per gram
=
3.0
×
10
2
m
2
. Take
N
A
=
6
×
10
23
Q.
Which of the following solutions when added to
1
L
of a
0.1
M
C
H
3
C
O
O
H
solution will cause no change in either the degree of dissociation of
C
H
3
C
O
O
H
or the
p
H
of the solution.
K
a
=
1.8
×
10
4
for
C
H
3
C
O
O
H
?
Q.
Dissociation constants of
C
H
3
C
O
O
H
and
N
H
4
O
H
in aqueous solution are
10
−
5
. If pH of a
C
H
3
C
O
O
H
solution is
3
. What will be the pH of
N
H
4
O
H
?
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