for question c) , why does the ionic strength remain unchanged even the precipitate is formed .Also, may the formation of Fe(NO3)3 cause the increase of ionic strength since fe3+

4. Neglecting any effects caused by volume changes, would you expect the ionic strength to increase, decrease or remain essentially unchanged by the addition of iron(III) chloride to the following solution and why? a. HCl(10%) b. NaOH(10%) c. AgNO3(10%)