1. The problem statement, all variables and given/known data Select a suitable indicator for each of the following titrations: HNO3 added to NaCN LiOH added to HNO2 2. Relevant equations all i know is Ka(HIn)=[H3O] at transition point and pKa(HIn)=pH at transition point 3. The attempt at a solution the book I have is really skimpy on this, and is has no other information, or even an example. For LiOH + HNO2 <----> H20 + LiNO2 ic that Li doesn't hydrolyze and NO2 does. the ka for NO2 is 5.1E-4 which should also be the Ka then I -log(5.1E-4) and I get the wrong answer????? The answer should be an indicator with a pH range around 8-10. I don't get it, can someone please help me?