Question

QUESTION 1

Read off the volume in mL of NaOH at the equivalence point.

QUESTION 2

Separately calculate the volume in mL of 0.20 M NaOH needed to react completely with 100 mL of 0.040 M HCl.

QUESTION 3

Calculate the volume in mL of 0.20M NaOH needed to react completely with 100.mL of 0.040M acetic acid.

QUESTION 4

Does the volume of NaOH needed to reach the equivalence point depend on whether the acid is strong or weak?

Yes
No

QUESTION 5

Compare the pH curves for HCl and acetic acid before the equivalence point. Does the acetic acid curve satisfy the definition of a buffer, i.e. a region with an intermediate value of pH, with a slow variation of pH as the NaOH is added

Yes
No

QUESTION 6

What is the pH of the solution acetic acid solution at the equivalence point?

QUESTION 7

How many equivalence points are in the titration of a diprotic acid? 123limitless

QUESTION 8

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?