What is the ph at the half-stoichiometric point for the titration of 0.22 m hno2(aq) with 0.01 m koh(aq)? for hno2, ka = 4.3 × 10−4 ?

pH = 3.37

At the half-equivalence (stoichiometric) point,

pH = pKa = -log(Ka);  

Therefore;

pKa = -log(4.3 x 10^-4)

        = 3.37

Hence, pH = 3.37

indicate valleys, hills, steepness and gentleness of slopes.

explanation:

contour lines on a map indicate elevation, or depth. numeric notations on contour lines refer to the level of elevation, or height about sea level.

3 1/4 %

explanation: