Question

I mixed 4.50mL of 10.0mM NaOH with .50mL phenol red. I need to calculate the pH of this solution. I have more information in my lab but I am not sure what data I need to look for. As part of the experiment I calculated pKa of Phenol Red. Do I use that pKa in the henderson-hasselbalch equation. If that is correct than I am not sure how to calculate the [HA]/[A-] ratio. Can anyone point me in the right direction?

Related Questions

NaOH(aq) + HCl(aq)----> H20 + Nacl(aq).. solve for the amoont of energy aborbed by the solution. (50... Calculate the theoretical pH after 2.50ml and 9.50ml of NaOH has been added in both the titration of... What will happen if 50mL of 0.022M Na2S2O3, 50mL of 0.010M AgNO3, and 50mL of 0.097M KCl are mixed t...