b. Given the theoretical Ka value for CH3COOH(aq) is 1.8 x 10-5, calculate the a

Question

b. Given the theoretical Ka value for CH3COOH(aq) is 1.8 x 10-5, calculate the absolute percentage difference between the experimental and theoretical values using the equation below (note the use of absolute value bars absolute % difference = 100% |theoretical K a -experimental Ka |/ theoretical Ka 5. Calculate the pH at each point the titration of 10.00 mL of 0.097 M HCI with the following volumes of 0.098 M NaOH a. 0.00 mL b. 5.00 mL 6. Calculate the pH at each point the titration of 10.00 mL of 0.097 M ascorbic acid (C6H8O6) (Ka 8.0 x 10-5) with the following volumes of 0.098 M NaOH: a. 0.00 mL b. 5.00 mL

Explanation / Answer

b. You need an experimental Ka value to introduce.

5.a.

[H+] = conc. HCl = 0.097

pH = -log0.097 = 1.01

5.b

Number of mol H+ not neutralized= 0.097mol/Lx0.010L

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