The calculator to find the Blank titre, Tire, Normality of naoh, Effective weight, Soluble protein, Fill in any four items to get the result of last.
P = 1.401 * 6.25 * 5 * (B - T) * N / M
Where M is Effective Weight, T is Titre, N is Normality of Noah, B is Blank titre, P is percentage of soluble protein.