The class will react 50.00 mL samples of .200 mol/L potassium phosphate with an excess of 0.120 mol/L lead II nitrate solution.

what is the minimum volume of lead II nitrate solution required? What volume of lead II nitrate solution should the instructor tell the students to use? Describe how the students can test for completeness of reaction of the limiting reagent?

I am really stuck any help would be greatly appreciated! Thanks.