Calculate the Diffusion Coefficient for the Diffusion of a Haemoglobin

Multiple Choice

Calculate the diffusion coefficient for the diffusion of a haemoglobin molecule through water at a temperature of 25°C. The effective cross sectional area of a haemoglobin macromolecule is 3.6  10^-9 m² and the viscosity of water is 8.90  10^-4 kg m^-1 s^-1 at this temperature.

A) 5.78  10^-12 m² s^-1
B) 5.78  10^-12 m² s^-1.
C) 0.69  10^-10 m² s^-1
D) 2.26  10^-9 m² s^-1