analytical chemisty

posted by .

Calculate the pH and pOH of a 0.00002M solution of acetic acid.

• analytical chemisty -

Call acetic acid HAc.
............HAc ==> H^+ + Ac^-
initial..2E-5M......0.......0
change....-x........x........x
equil...2E-5-x......x........x

Ka = (H^+)(Ac^-)/(HAc)
Substitute and solve for H^+, then
pH = -log(H^+).
Then pH + pOH = pKw = 14
Youknow pH and pKw, solve for pOH.

Note: I think you must solve the quadratic; i.e., you will not be able to make simplifying assumptions.

Similar Questions

1. Chemistry

Pure acetic acid, known as glacial acetic acid, is a liquid with a density of 1.049 g/mL at 25°C. Calculate the molarity of a solution of acetic acid made by dissolving 10.00 mL of glacial acetic acid at 25°C in enough water to make …
2. Chemistry

Assignment  Calculate the pH, pOH, [H+], and [OH] for each of the following solutions. Show all work. (10 Points) Solution Composition of Starting Materials 1 0.10 M acetic acid 2. 5 mL 0.10 M acetic acid + 5 mL wa …
3. Chemistry

how do you calculate the pOH of a 0.25M solution of monochloroacetic acetic acid at 25C
4. CHEMISTY HELP!!!

A professor found that there are 109 drops of glacial acetic acid in 2.00 mL. Calculate the number of drops of glacial acetic acid, HC2H3O2 required to make 155 ml of 0.25 M acetic acid solution Can anyone walk me through the steps …
5. Chemistry

A chemist wants to be a supercook and wants to create 8%(m/v) acetic acud solution to be "extra strength" vinegar. if pure acetic acid Is a liquid density of 1.049 g/ml. how many ml of acetic acid should be dissolved to male 500 ml …
6. Chemistry

Determine how many mL of solution A (acetic acid-indicator solution) must be added to solution B (sodium acetate-indicator solution) to obtain a buffer solution that is equimolar in acetate and acetic acid. Solution A: 10.0 mL 3.0e-4M …
7. analytical chemistry

a buffer solution is 0.2M in acetic acid and in sodium acetate. Calculate the change in pH upon adding 1.0ml of 0.1M hydrochloric acid to 10ml of this solution.(Given pKA of acetic acid is 4.76)
8. Chemisty

You have 775 mL of an 0.11 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 = 5.05?
9. Chemistry

Pure acetic acid, known as glacial acetic acid, is a liquid with a density of 1.049 g/mL at 25°C. Calculate the molarity of a solution of acetic acid made by dissolving 35.00 mL of glacial acetic acid at 25°C in enough water to make …
10. CHEMISTY

How would you prepare 30 mL of acetic acid/acetate buffer solution of pH = 5.06?

More Similar Questions