Question

Take approximately 20 mL of 0.5 M of HC2H3O2 (acetic acid) solution in a clean, small beaker. Prepare 25 mL of three different acetic acid solutions with concentrations in the range between 0.05 and 0.2 M from the stock 0.5 M acetic acid solution using appropriate dilution techniques. (Use glass pipettes and volumetric flasks). Determine the pH of each solution using the pH meter as described below.

Concentrations used are .05,0.1,and 0.15

Data-

Write the chemical equation for the dissociation of acetic acid.

Prepare and complete an ICE table for each solution of acetic acid tested:

	[HC2H3O2] (M)	[C2H3O2-] (M)	[H3O+] (M)
Initial Concentration		0	0
Concentration Change
Equilbrium Concentration

Determine the Ka and pKa values for each solution of acetic acid tested. Show your work