Insulin is dissolved in a suitable solvent and the osmotic pressure $(π)$ of solution of various concentrations $(g / {cm}^{3})$ C is measured at $20^{0} C$ . The slope of $π$ against C is found to be $4.65 \times 10^{- 3}$ . The molecular weight of the insulin (g/mol) is: (R = 0.0821 lit atm ${mole}^{- 1} K^{- 1}$ )

see full answer

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!

An Intiative by Sri Chaitanya

$4.5 \times 10^{5}$

$3 \times 10^{5}$

$5.16 \times 10^{6}$

$9 \times 10^{5}$

answer is D.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

$π$ =CRT.

C = concentration in mole/lit

when expressed in gm/ cc

$C = \frac{C}{Molar mass (M)} \times \frac{1000}{v (ml)}$

$π$ $= \frac{C}{M} \times 1000 RT$

Slope $= \frac{1000 RT}{M}$

$4.65 \times 10^{- 3} = \frac{1000 \times 0.0821 \times 293}{M}$

M = $\frac{1000 \times 0.0821 \times 293}{4.65 \times 10^{- 3}}$

Watch 3-min video & get full concept clarity