Logo
Home Study Material Contact Search
AI Chat FREE
  1. sciences
  2. chemistry
  3. enough of a monoprotic acid is dissolved in water

Enough of a monoprotic acid is dissolved in water to produce a 0.0129 M solution. The...

Free

70.2K

Verified Solution

Question

Chemistry

Enough of a monoprotic acid is dissolved in water to produce a0.0129 M solution. The pH of the resulting solution is 2.69.Calculate the Ka for the acid.

Answer & Explanation Solved by verified expert
3.8 Ratings (490 Votes)

from the pH find the [H3O+]

[H3O+] = 10-pH = 10-2.69 = 0.00204

construct the ICE table

lets mono protic acid = HA

         HA (aq) + H2O (l) <-----> H3O+ (aq) + A- (l)

I         0.0129                              0                0

C      -x                                         +x             +x

E   0.0129-x                               +x               +x

from the ICE table concentration of H3O+ = x = 0.00204

concentration of H3O+ = [A-] = x = 0.00204

equilibrium concentration of HA = 0.0129 - 0.00204 = 0.01086 M

Ka = [x] [x] / [0.0129 -x]

Ka = [0.0024] [0.0024] / [0.01086]

Ka = 5.3 x 10^-4
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Statistics
1.2K views

Hank would like to know how many customers are entering his propane store within a given...

Chemistry
1.2K views

Prove that Inter energy is Independent of the path

Medical Sciences
1.2K views

Q3. An inflammation of the ciliary body and iris may give rise to a so-called ciliary...

Physics
1.2K views

The frequency of light reaching Earth from a particular galaxy is 18% lower than the frequency...

Physics
1.2K views

a) A block of Aluminum has a density of 2700 kg/m^3 and a mass of 63...

Advance Math
1.2K views

1. A company that makes cell phones has the following cost structure. The have fixed costs...

Accounting
1.2K views

Journal Entries, T-Accounts, Cost of Goods Manufactured and Sold During May, the following transactions were completed and reported...

Statistics
1.2K views

common during some parts of the year than others Owners of a children s toy...

Calculus
1.2K views

A sector of area 37 2 square inches is formed by a central angle of...

Accounting
1.2K views

Question 1 Choice of accounting principles may have significant economic...

Accounting
1.2K views

XYZ firm just paid a dividend of $2.00 per share is expecting a period of...

Accounting
1.2K views

The financial statements of Heatwave Athlete Wear Include the following selected data (s in millions):...