Question

What is the ionic strength, I, of a solution at 25C containing 0.002 mol/L of BaSO4 and 0.001 mol/L of BaCl2? What is the activity coefficient of Ba2+ in this solution?

Answer 1

This is a long (but not particularly complicated) calculation to do on the web. Do you have a specific question that is troubling you?

Answer 2

0.081