1.

A solution has an osmotic pressure of 0.0821 atm. at 300 K. Its concentration would be: (a) 0.66 M (b) 0.32 M (c) 0.066 M (d) 0.033M

Answer»

Correct Answer is: (d) 0.033M

Osmotic Pressure (Π) is given by:

Π= CRT

(Where C is concentration, R is gas constant, T is temperature)

Given, Π = 0.0821 atm

T = 300K

Then using above equation,

C = 0.0821÷ (0.0821×300) mole per Litre

C= 0.003333333 moles per litre



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