Predict the pH of a 0.0050 M solution of a weak, polyprotic acid.
Ka1 = 4.3 x 10-7
Ka2 = 5.6 x 10-11

You are making a solution of calcium chloride dissolved in water. you add solid, stir, and it dissolves. you add just a spatula tip full, stir, and the solid does not dissolve. how could you describe the solutions before and after adding the spatula tip amount