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Solutions and Colligative Properties
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Osmotic pressure
NEET level
Single correct option
Difficulty 1 of 3
so120
The osmotic pressure of a
0.020
M
glucose solution at
300
K
is (use
R
=
0.0821
L
atm
mo
l
−
1
K
−
1
)
A
0.493
atm
B
0.985
atm
C
0.246
atm
D
4.93
atm
Answer: A
Use
π
=
CRT
since glucose does not dissociate.
π
=
0.020
×
0.0821
×
300
=
0.493
atm. The value 0.985 atm would need
i
=
2
, which does not apply.
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