Insulin is dissolved in a suitable solvent and the osmotic pressure \( \pi \) in atm of solution...

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Insulin is dissolved in a suitable solvent and the osmotic pressure \( \pi \) in atm of solutions of various concentrations \( \mathrm{C} \) in \( \mathrm{g} / \mathrm{cm}^{3} \) is measured at \( 27^{\circ} \mathrm{C} \). The slope of plot of \( \pi \) against \( \mathrm{C} \) is found to be \( 4.1 \times 10^{-3} \mathrm{~atm} \mathrm{~cm}^{3} \mathrm{~g}^{-1} \). The molecular mass of insulin is:
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