Logo
Home Study Material Contact Search
AI Chat FREE
  1. sciences
  2. chemistry
  3. the ka of a monoprotic weak acid is 7.85 × 10-

The Ka of a monoprotic weak acid is 7.85 × 10-3. What is the percent ionization...

Free

70.2K

Verified Solution

Question

Chemistry

The Ka of a monoprotic weak acid is 7.85 × 10-3. What is thepercent ionization of a 0.136 M solution of this acid?

Answer & Explanation Solved by verified expert
4.5 Ratings (953 Votes)

construct the ICE table

lets mono protic acid is HA

         HA + H2O <--------> H3O+ + A-

I             0.136                             0    0

C              -x                                 +x    +x

E                 0.136-x                          +x    +x

now write the dissociation expression

Ka = [H3O+][A-] / [HA]

7.85 × 10-3 = [x][x] / [0.136-x]

x2 + x7.85 *10-3 - 1.0676 * 10-3 =0

solve the quadratic equation

x = 0.029 M = [H3O+]

percentage of ionisation

= concentration of [H3O+] / HA x 100

= 0.029 / 0.136 x 100

= 21.32 %
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

Basic Math
1.2K views

Mary has on her bookshelf 5 novels, 4 biographies, and 8 textbooks. Mary wants to take a...

Biology
1.2K views

Hello to every one on this page. Below is the results from the experiment conducted on...

Biology
1.2K views

Describe or draw the endocrine control in the ovary beginning with the primary oocyte and ending...

Basic Math
1.2K views

Before opening the dataset needed for this problem, you’ll need to call the “car” package: > library(car) ?Now...

Physics
1.2K views

Both the springs shown in figure 5 E2 are unstretched If the block is displaced...

Basic Math
1.2K views

Convert 5?/6 radians into degrees:Convert 2?/3 radians into degrees:Convert 7?/4 radians into degrees:Convert ? radians...

Accounting
1.2K views

Using the sequential method, Pone Hill Company allocates Janitorial Department costs...

Accounting
1.2K views

The CEO of Washington Plastics, Inc. has asked the accounting department to research the classification...

Accounting
1.2K views

Accounting: Which of the following statements accurately describes the role of Materiality and Consistency principles...

Accounting
1.2K views

Gong Badak Medical Centre (GBMC), a newly set-up hospital, leases an electronic digital scanning machine...

Accounting
1.2K views

Molly plc is finalising certain figures that will appear in its financial statements as at...

Accounting
1.2K views

Uraina Clark has conducted research on the impact of which hormone on behavior? ...