The Hiementz reference is math-heavy, with 10 different equations for turbidity, the last of which is shown below (Hiementz-685):
p, the constant 3.1415926...
, refractive index (Hiementz-669)c2, concentration, Hiementz-713
M, molecular weight
NA, has the units molecules per cubic centimeter
B, the second virial coefficient. (See Flory-299, eq. 37 and Flory 649.)
The data from a light scattering experiment is used to construct a Zimm Plot.