Answer Happy

7a. Now switch to graph view. Fill out the table below with the data (concentrations of HA, A™, and H3O+) and calculate the pH of the solution, and the Ka value (the equilibrium constant for the acid). Then answer the questions below. [HA] 1.00 x 10-3 Strength slider position Weak Middle 7.76 x 10-4 4.79 x 10-8 [A-] 3.16 x 10-7 2.01 x 10-4 [H3O+] 3.16 x 10-7 1.00 x10-3 2.24 x 10-4 Strong 7b. How does the concentration of H3O+, the value of pH, and the value of Ka change as the weak acid strength increases from weak to strong? (Answer for each one.) pH 1.00 x 10-3 Ka 8. Now, keep the concentration at 0.001 M, move the strength to strong and record the concentrations of HA, A-, and H3O+ and calculate the pH. 9. Look at the last line of your table (slider position Strong) and your answers to 8. Compare the pH values.