6. If 5.82 g of KHC204.H2C2O4 (three ionisable protons) having 10% inert impurities, and 3.02
g of KHCH,04 (one ionisable proton) are dissolved in water and diluted to 500 cm', what is
the normality of the solution assuming a complete ionisation.

Phosphorous acid, h3po3(aq) , is a diprotic oxyacid that is an important compound in industry and agriculture. p k a1 p k a2 1.30 6.70 calculate the ph for each of the points in the titration of 50.0 ml of 1.5 m h3po3(aq) 1.5 m h 3 po 3 ( aq ) with 1.5 m koh(aq). 1.5 m koh ( aq ) .