Question

The other sheet shows titration curves for reaction of a diprotic acid with NaOH. On this sheet you need to enter the two K_a values of the acid manually, in cells E1 = 1.00 x 10^-3

And E2 = 1.0 0x 10^-8.

Enter the volume and concentration data in the pink cells G1, G2 and G4:

            Volume of acid: 100mL:                     Enter 100

            Concentration of acid: 0.040M           Enter 0.040

            Concentration of NaOH: 0.20M         Enter 0.20

What is the pH after 40 mL of NaOH has been added to the diprotic aicd?

Answer 1

pH after 40 mL of acid has been added = 10.23