Posted by Grace on Monday, April 16, 2012 at 7:17pm.
pH = 4.0; (H^+) = 1E-4
............HA ==> H^+ + A^-
initial....0.1......0.....0
change.....-x........x.....x
equil....0.1-x.......x.....x
x = 1E-4
Ka = (H^+)(A^-)/(HA)
Substitute from the ICE chart and solve for Ka.
Related Questions
chemistry - A. Strong Base 1.) What is the concentration of a solution of KOH ...
Chemistry/pH- Weak Acid - Hi again! I have a new question, Can you help me? ...
Chemistry Very Urgent!! - A 0.035 M solution of a weak acid (HA) has a pH of 4....
chemistry - Weak Acid 1.) The pH of a 0.060M weak monoprotic acid HA is 3.44. ...
chemistry - Weak Acid 1.) The pH of a 0.060M weak monoprotic acid HA is 3.44. ...
Chemistry/pH- Weak Acid - Hi again! I have a new question, Can you help me? ...
CHEMISTRY FOR DR. BOB or anyone else - A hypothetical weak acid HA, was combined...
chemistry - A buffer solution is composed of 0.370M HA, a weak monoproctic acid...
chem - the pH of a .100 M solution of sodium formate = 8.37. Calculate the value...
ap chem - A 9.00 M solution of a weak acid, HA, has a pH of 1.30 1.) calculate [...
For Further Reading
