Ionic Strength Calculations-

GEOCHEM-EZ can be run using either the Calculated or Fixed Ionic Strength choices. For the "Calculated Ionic Strength" a guess must be entered for the calculation to occur.

If the solution is dilute, then a guess of 0.10 is appropriate.

Fixed Ionic Strength- is suitable for complex systems where all of the components may not be known.

For cases in which Fixed Ionic Strength is imposed load the files: "Example 3 Calculate pH.geo" and "Example 7 Type A redox rxn.geo" from the "My Data" folder.