Calculate the excluded volume in terms of the molecular volume on the basis that the

Chapter 19, Problem 19.23

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Calculate the excluded volume in terms of the molecular volume on the basis that the molecules are spheres of radius a. Evaluate the osmotic virial coefficient in the case of bushy stunt virus, \(a=14.0 \mathrm{~nm}\), and haemoglobin, \(a= 3.2 \mathrm{~nm}\) (see Problem 19.18). Evaluate the percentage deviation of the Rayleigh ratios of \(1.00 \mathrm{~g} /\left(100 \mathrm{~cm}^3\right)\) solutions of bushy stunt virus \(\left(M=1.07 \times 10^4 \mathrm{~kg} \mathrm{~mol}^{-1}\right)\) and haemoglobin \(\left(M=66.5 \mathrm{~kg} \mathrm{~mol}^{-1}\right)\) from the ideal solution values. In eqn 19.8, let \(P_\theta=1\) and assume that both solutions have the same K value.