The next items refer to the result of mixing 400. ml of 0.10 M NaOH and 100.0 mL of 0.10 M Mg(NO3)2. Reaction as shown goes essentially to completion.
2 OH- + Mg2+ ------->Mg(OH)2(s), K= Ksp^-1 = 1.8 x 10^11
a) What is [NO3-] in the final aqueous solution?
b) What [OH-] remains when the reaction is complete?
c) What is the small final [Mg+2]? Use the K above , or Ksp for Mg(OH)2 = 5.6x10^-12