Common Ion Effect Flashcards
1
Q
What happens if KNO2 is added to HNO2 + H2O NO2- + H3O
A
HNO2 + H2O + KNO2 NO2- + H3O+ + K+
Because NO2- concentration has increased equilibrium shifts to LHS to compensate which means H3O+ concentration decreases
2
Q
What is the common ion effect
A
The effect on pH when the salt of a conjugate base is added to a solution of its parent or conjugate acid
