Ionic Strength Problems: activity p 4
1. What is the ionic strength of 0.2 mol dm^{3} potassium hydroxide solution? 

2. What is the ionic strength of 0.05 mol dm^{3} sodium phosphate (Na_{3}PO_{4}) solution? 

3. What is the ionic strength of a solution made by mixing 100 cm^{3} of 0.3 mol dm^{3} sodium chloride solution and 50 cm^{3} of 0.2 mol dm^{3} potassium sulfate? 

4. What is the ionic strength a of solution made by mixing 50 cm^{3} of 0.002 mol dm^{3} aluminium sulfate solution and 50 cm^{3} of 0.006 mol dm^{3} lithium sulfate? 

5. What is the ionic strength of 0.001 mol dm^{3} ethanoic acid solution? In this solution the degree of dissociation, a , is 0.3. 
answer 1: 0.2 mol dm^{3}
answer 2: 0.3 mol dm^{3}
answer 3: 0.4 mol dm^{3}
answer 4: 0.024 mol dm^{3}
answer 5: 0.0003 mol dm^{3}