Answer Happy

a) For each ionic compound, circle the correct acid/base property when the salt is dissolved in water. b) Draw a square around the ionic compound that will have the highest pH in the list when dissolved in water (assuming the same concentration). Ionic Compound In water, the salt is (circle one) CaF₂ Acidic / Basic/ Neutral CH3NH3Br Acidic / Basic/ Neutral NaClO4 Acidic / Basic/ Neutral
. (7 pts) Carbonic acid is a weak polyprotic acid, and its K, values for the successive ionization steps are: Kal = 4.3 x 10-7 K₁2= 5.6 x 10-11 What is pH of 0.13 M carbonic acid (H₂CO3) solution? Make any necessary approximations to solve this problem.
9. (3 pts) Consider the following titration curve (titration of a weak base by a strong acid). What is pK. for the conjugate acid of the weak base? A. pH 10.2 B. pH 8,4 C. pH 5.0 0 10 20 30 40 50 60 70 volume of titrant acid (ml) 10. (10 pts) Balance the following redox reaction in an acidic aqueous solution: Cl₂(g) + Pb²+ (aq) → CIO4 (aq) + Pb(s) Hd 14 12 10 8 9 4 N O