You mix 100. ml of 0.5 M acetic acid solution with 400. ml of 0.5 M NaOH. What is the final pH? (pka of acetic acid = 4.74)
a. 4.6
b. 5.2
c. 13.2
d. 13.5
You mix 100. ml of 0.5 M acetic acid solution with 400. ml of 0.5 M...
=Assume you have prepared 100.0 mL of a buffer solution using 0.400 mol of acetic acid (pKa = 4.74) and 0.400 mol of sodium acetate. The pH of this buffer solution is initially 4.74. After preparing this buffer solution, you added 55.0 mL of a 1.10 M NaOH solution to your buffer to see what would happen. What will the pH of this new solution be?
4. You are titrating 100 ml of a 0.25 M solution of acetic acid (pk. = 4.75) with a 1.25 M solution of NaOH. What is the pH of the solution after you have added 10.0 ml of the NaOH?
You have stocks of 4 M _______ acid and 2 M NaOH. You mix 10 mL of acid stock with 100 mL of NaOH stock and adjust volume to 500 mL. The resulting pH is 13.5. The acid was? a. weak b. strong c. neutral d. oxidixing e. reducing
If you mix equal volumes of 0.1M NaOH with 0.2M acetic acid, is the resulting solution a buffer? Why or why not? Given that the pKa of acetic acid is 4.76, what is the pH of the resulting solution?
You have 775 mL of an 0.15 M acetic acid solution. What volume (V) of 1.80 M NaOH solution must you add in order to prepare an acetate buffer of pH = 4.65? (The pKa of acetic acid is 4.76.)
You have 125 mL of an 0.19 M acetic acid solution. What volume (V) of 1.10 M NaOH solution must you add in order to prepare an acetate buffer of pH = 4.20? (The pKa of acetic acid is 4.76.)
You have 775 mL of an 0.49 M acetic acid solution. What volume (V) of 2.40 M NaOH solution must you add in order to prepare an acetate buffer of pH = 4.56? (The pKa of acetic acid is 4.76)
A solution of 100. ml of .500 M Acetic Acid is titrated with .500 M sodium hydroxide. The Ka of acetic acid is 1.8*10^-5. Find the pH values at the given stages: a) before the addition of any NaOH. B) After 25.0 mL of NaOH added. C) At the equivalence point.
If you mix 60mL of 0.2 M acetic acid with 80mL of 0.4 M acetate, what will be the resulting pH. Then how many total milliliters of 1M NaOH can you add to the solution and still have a good buffer? (that is, within 1 pH unit of pKa).
Acetic acid has a pKa of 4.74. A stock solution of 1.0 M acetic acid is available. A stock solution of 2.0 M potassium acetate is available. Show all the calculations and explain how to make 560.0 mL of 250. mM acetate buffer that has a pH = 5.0. (Hint: first make a 250 mM potassium acetate solution and a 250 mM acetic acid solution. Then determine how much of each to use.). pH = pKa + log {[acetate]/[acetic acid]}