# chem

posted by Anonymous

A weak acid, HA, has an ionization constant of 4.34 x 10-8. If we prepare a solution that is 0.273 M in HA what percent of the acid will be ionized

1. DrBob222

...........HA --> H^+ + A^-
I.......0.273.....0......0
C.........-x......x......x
E.......0.273-x...x......x

Ka = (H^+)(A^-)/(HA)
Substitute the E line and solve for x = (H^+). Then %ion = [(H^+)/0.273]*100 = ?

## Similar Questions

1. ### Stupid Chemistry

Ok, blonde moment here, Kb is the same as Ka but just for bases and Ka is for acids correct?
2. ### chemistry

What is the percent ionization of a 1.38 mol/L weak acid if its Ka = 2.7 x 10-6?
3. ### CHEM HELP

Nicotinic acid (niacin) is a monoprotic acid with the formula HC6H4NO2. A solution that is 0.012M in nicotinic acid has a pH of 3.39 at 25*C. What is the acid-ionization constant, Ka and pKa for this acid at 25*C?
4. ### chemistry

2- A 0.310 M solution of a weak acid, HX, has a pH of 2.53 a. Find the [H+] and the percent ionization of nitrous acid in this solution. b. Write the equilibrium expression and calculate the value of Ka for the weak acid. c. Calculate …
5. ### chemisty

0.100 M solution of a weak acid, HX, is known to be 15% ionized. The weak acid has a molar mass of 72 g/mol. 1. What is Ka for the weak acid?
6. ### Chemistry-Dr Bob help!!

0.100 M solution of a weak acid, HX, is known to be 15% ionized. The weak acid has a molar mass of 72 g/mol. 1. What is Ka for the weak acid?
7. ### Chemistry 104

A 0.30M solution of a weak monoprotic acid is 0.41% ionized. what is the acid-ionization constant, Ka for this acid?
8. ### chem

A weak acid, HA, has an ionization constant of 9.29 x 10-6. If we prepare a solution that is 0.727 M in HA what percent of the acid will be ionized?
9. ### Chem

a) A weak acid, HX, is 1.3% ionized in .20 M solution. What percent of HX is ionized in a .030 M solution?
10. ### Chemistry

What is the ionization constant for a weak acid HA that is 1.60% ionized in 0.095M solution?

More Similar Questions