# Chemistry

how do you calculate the pOH of a 0.25M solution of monochloroacetic acetic acid at 25C

1. 👍 0
2. 👎 0
3. 👁 68
1. You look up the Ka or pKa for the acid:2.87= pKa

or Ka=(x)(x)/(.25-x)

pKa=2p(x)-p(.25-x)

assume x is small..
2.87=2p(x)-p(.25)

p(x)=2.87/2 -1/2 (-.6)

p(H)=1.44+.3=1.74
p(OH)=14-pH

1. 👍 0
2. 👎 0

## Similar Questions

1. ### Chemistry

Monochloroacetic acid, HC2H2ClO2, is a skin irritant that is used in "chemical peels" intended to remove the top layer of dead skin from the face and ultimately improve the complexion. The value of Ka for monochloroacetic acid is

asked by Kaleen on November 23, 2011
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 1 mL

asked by Brian on October 11, 2010
3. ### chem equilibrium

Determine the pH of a buffer that is prepared by mixing 100 mL of 0.2 M NaOH and 150 mL of 0.4 M acetic acid assuming the volume is additive. Calculate the pH of the solution when 0.5 mL of 1 M of HCl was added hence calculate the

asked by John on December 15, 2015
4. ### analytical chemisty

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

asked by mary on September 23, 2012
5. ### 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

asked by Mindy on February 17, 2010
6. ### 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

asked by Matt on May 16, 2016
7. ### 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

asked by Kate on April 22, 2012
8. ### Chemistry

First, the question I'm given is: What is the pH of a 1.0 L solution containing 0.25M acetic acid and 0.75M sodium acetate ( Ka for acetic acid= 1.8x 10-5) So I took the -log(1.8x10-5)= 4.74+log(.75/.25)= 5.22 pH But then I'm

asked by Marcus on April 8, 2013
9. ### 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

asked by Jake on October 29, 2012
10. ### Chemistry help!!

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

asked by Kate on April 22, 2012

More Similar Questions