Question

A 1.25 M solution of the weak acid HA is 9.2% dissociated. What is the pH...

A 1.25 M solution of the weak acid HA is 9.2% dissociated. What is the pH of the solution?

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

HA H+ + A-

concentration of weak acid is 1.25 M, and it dissociates 9.2%, then 9.2% of the starting acid is now in the form of H+ and A-. Further, the concentrations of H+ and A- are equal to [1.25M X 0.092] = 0.115 M.

pH = -log[H+]

pH = -log(0.115)

      = 0.94

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A 1.25 M solution of acid HA is 19.2% dissociated. What is the pH of this...
A 1.25 M solution of acid HA is 19.2% dissociated. What is the pH of this solution?
A 1.25-molar solution of a weak monoprotic acid is 9.2% ionized. Calculate the pH of the...
A 1.25-molar solution of a weak monoprotic acid is 9.2% ionized. Calculate the pH of the solution.
A solution containing a monoprotic weak acid (HA) that is 8.82% dissociated was found to have...
A solution containing a monoprotic weak acid (HA) that is 8.82% dissociated was found to have a pH of 2.91. What is the concentration of A– at equilibrium? What is the concentration of HA at equilibrium? Calculate the pKa for this acid.
The weak acid, HA, is 2.4% dissociated in a 0.22M Solution. Calculate (a) the Ka, (b)...
The weak acid, HA, is 2.4% dissociated in a 0.22M Solution. Calculate (a) the Ka, (b) the pH of the solution, and (c) the amount of 0.1M KOH required to neutralize 550 ml of the weak acid solution.
1. A 0.735 M solution of a weak acid is 12.5% dissociated. (a)Calculate the [H3O+], pH,...
1. A 0.735 M solution of a weak acid is 12.5% dissociated. (a)Calculate the [H3O+], pH, [OH -], and pOH of the solution. (b) calculate the ka of the acid
A 0.50 M solution of a weak acid HA has the same pH as a 0.075...
A 0.50 M solution of a weak acid HA has the same pH as a 0.075 M solution of HCl. Calculate the Ka for HA
3) The pH of a 1.25 M solution of some weak acid is 3.65. Calculate Ka...
3) The pH of a 1.25 M solution of some weak acid is 3.65. Calculate Ka and % ionization of the solution.
The weak acid HA is determined to be 9.14% dissociated when the initial concentration of HA...
The weak acid HA is determined to be 9.14% dissociated when the initial concentration of HA is 0.0200M. Calculate Ka for this acid.
HA is a weak acid with a pKa value of 3.73 . What is the pH...
HA is a weak acid with a pKa value of 3.73 . What is the pH of a buffer solution that is 0.348 M in HA and 0.817 M in NaA? What is its pH after the addition of 10.1 g of HCl to 2.000 L of this buffer solution? Assume the volume remains fixed at 2.000 L.
HA is a weak acid with a pKa value of 3.61 . What is the pH...
HA is a weak acid with a pKa value of 3.61 . What is the pH of a buffer solution that is 0.300 M in HA and 0.837 M in NaA? What is its pH after the addition of 12.7 g of HCl to 2.000 L of this buffer solution? Assume the volume remains fixed at 2.000 L. The temperature is 25oC.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT