Logo
Home Study Material Contact Search
AI Chat FREE
  1. sciences
  2. chemistry
  3. a 0.500 m solution of a weak base has a ph of 9.00

A 0.500 M solution of a weak base has a pH of 9.00. What is...

Free

80.2K

Verified Solution

Question

Chemistry

A 0.500 M solution of a weak base has a pH of 9.00. What is thebase hydrolysis constant, Kb, for the weak base?

Answer & Explanation Solved by verified expert
3.6 Ratings (502 Votes)

pH = 9.00

pH + pOH = 14

pOH = 5

[OH-] = 1.0 x 10^-5 M = x

B    + H2O ------------------> BH+    + OH-

0.500                                    0            0 -------------------> initial

0.500-x                                x              x ------------------> equilibrium

Kb = [BH+][OH-]/[B]

Kb = x^2 / 0.5-x

Kb = (1.0 x 10^-5 ) ^2 / 0.5                (x = neglected)

Kb = 2.0 x 10^-10
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

Q

How would your FEV1/FVC ratio be affected if your lips were not sealed on the mouthpiece...

Medical Sciences
Q

You should be able to answer the following questions after studying “Error Analysis of a Statistical Sample”,...

Physics
Q

Employee Friendly Policies A. Discuss three policies in each of the following categories:      Family Issues       Health Safety...

General Management
Q

What type of sensory language is used in the following sentence from "Silence - AFable"...

Biology
Q

15 Two charge q and 3q are placed fixed on x axis separated by a...

Physics
Q

Use Newton s method with the specified initial approximation x to find x3 the third...

Basic Math
Q

Lasso and Markowitz is a law firm that is initiating an activity-based costing system. Sam...

Accounting
Q

Compute the DuPont Disaggregation of ROE Refer to the balance sheets and income statement below...

Accounting
Q

You have an IT consulting business. The firm's variable overhead is $80 per client hour...

Accounting
Q

Teal Tool Company's December 31 year-end financial statements contained the following errors. December 31, 2020...

Accounting
Q

Actual indirect materials costs Actual indirect labor costs Other overhead costs Overhead applied Storm Concert...

Accounting
Q

The table to the right shows that between 1993 and 2003, Canada erased a net...

Accounting