BUFFER INDEX IN THE TITRATION OF A MONOPROTIC ACID WITH A STRONG BASE

Buffer solutions are of great worth in analysis, in chemical and pharmaceutical research, in physiology and other fields of science and technology. On the other hand, buffer capacity is subject to precise algebraic treatment by using differential calculus. The location of the maximum and inflexion points in the buffer index against pH and in the volume of titrant added against pH plots for the titration of a weak monoprotic acid with a strong base, is the subject of consideration in this paper. In calculating buffer capacity in the titration of a weak acid with a strong base, an essential factor is the change in the volume resulting from dilution of the solution as titrant is added.