When calculating normality, what does the equation (N1)(V1)=(N2)(V2) help determine?

The equation (N1)(V1)=(N2)(V2) is a fundamental principle in chemistry, particularly in the context of solutions and their concentrations. This equation is used to establish the relationship between the normality (N) and volume (V) of two solutions involved in a dilution or mixing process.

In this equation, N1 and V1 represent the normality and volume of the initial solution, while N2 and V2 represent the normality and volume of the final solution after mixing. The equation signifies that the product of the normality and volume of the first solution will equal the product of the normality and volume of the second solution. This helps to ensure that the amount of solute remains constant before and after the dilution or mixing process, allowing for the calculation of unknown concentrations or volumes based on known values. Thus, the equation directly relates to the concept of concentration and volume manipulation, confirming the primary focus on the relationship between initial and final concentrations.