Common ion effect question?

What is the Ph change of a 0.210 M solution of citric acid pka equals 4.77 If citrate is added to a concentration of 0.150 M with no change in volume?



please does anyone have any idea on how to solve this?Common ion effect question?
well, the best way to do this would be the hendersson hasslebach equation, which is pH = pKa + log(A-/HA). in this cause, you first need to know how much of the original 0.210M citric acid dissociates in a solution. Therefore, make a chart that helps you show how much citric acid dissociates base on it's Ka1. After that, you would add 0.150M citrate. Based on the rules of equilibrium, the equation will work to balance this effect, and you need to balance the effects by changing the concentration of HA and A-, which is how you get the values for the equation.