Question

50 marks

Calculate osmotic pressure of a decimolar (M/10) urea solution at 27°C​

Answer 1

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we use the formula CRT

here V=1L

c=0.1moles

T=27C=273K+27=300K

R=0.0821L

=CRT/v

0.1×0.821×300/1

=2.463 atoms

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Answer 2

Answer:

Molarity, M=

10

1

M

=0.1M

T=300K

π=MRT

=0.1×0.0821×300

π=2.463 atm

and we know 1 atm=1.01325 bar

so π=2.463×1.01325

=2.49 bar