What is activity of a solution

Exploring the activity series chart.Concentration is a term used for ideal solution,but in real solutions it is replaced by activity.A and b are constants whose values depend on the dielectric constant of the solvent and the temperature;In the case of the hydrogen ion, it is found using electrochemical methods.A solution is a homogeneous mixture of two or more components in which the particle size is smaller than 1 nm.

Much as the van der waals equation describes real gases in place of the old pv=nrt, activity can be used in place of concentration to describe the behavior of real solutions vs.The powdered drink mix and water make a total of 100 ml.The activity is a little harder to pin down.In a solution, all the components appear as a single phase.The ion activity (a) is calculated based on the observed ion concentrations (c) multiplied by the total ion activity coefficient (γt), which has been determined experimentally or from theory (e.g., millero and pierrot, 1998):

The following tables indicate to what extent nacl and sucrose reduce water activity.This is a great activity with which to engage students.The activity of solutes in solutions in order to use activity, we must have some sort of model of ideal behavior;For example, both magnesium and zinc can react with hydrogen ions to displace h 2 from a solution by the reactions:What is the ph of this solution?

Activity is the effective concentration of any solution.The dry drink mix is the solute;