9. A solution was made by completely dissolving 0.0788 g Ca(OH)2, a strong base in 100 mL of water. The pOH of the solution was: (M =74.10 g/mol) a) 12.33 b) 3.67 c) 4.67 d) 1.67 e) 1.97 10. The value of K, for HNO2(aq) is 7.2x10". What is the value of K, for the NO; ion? a) 1.0x10 14 b) 7.2x104 c) 2.8x10-10 d) 1.4x10-11