Logo
Home Study Material Contact Search
AI Chat FREE
  1. sciences
  2. chemistry
  3. a- what is the ph of a buffer prepared by adding 0

A- What is the pH of a buffer prepared by adding 0.405 mol of the weak acid...

60.1K

Verified Solution

Question

Chemistry

A-

What is the pH of a buffer prepared by adding 0.405 mol of theweak acid HA to 0.305 mol of NaA in 2.00 L of solution? Thedissociation constant Ka of HA is 5.66×10−7.

Express the pH numerically to three decimal places.

B-

What is the pH after 0.150 mol of HCl is added to the bufferfrom Part A? Assume no volume change on the addition of theacid.

Express the pH numerically to three decimal places.

C-

What is the pH after 0.195 mol of NaOH is added to the bufferfrom Part A? Assume no volume change on the addition of thebase.

Express the pH numerically to three decimal places.

Answer & Explanation Solved by verified expert
3.7 Ratings (316 Votes)
A Ka 566107 pKa log Ka log566107 6247 use pH pKa log conjugate baseacid 6247 log 03050405 6124 Answer 612 B mol of HCl added 015 mol A will react with H to form HA Before Reaction mol of A 0305 mol mol of HA 0405    See Answer
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: Zin AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Q

concept

Biology
Q

Suppose f x x 3 e x 4 x 1 or PDF of your solution...

Calculus
Q

What would the x intercept of the function tell you in terms of age and...

Calculus
Q

wire 18 meters long is to be cut into two pieces One ece will be...

Calculus
Q

The following transactions were...

Accounting
Q

Part B: (15 Points) Consider the partial solution to Pierre Simulation that we...

Accounting
Q

HiTech Products manufactures three types of remote-control devices: Economy, Standard, and Deluxe. The company, which...

Accounting
Q

(Ignore income taxes in this problem.) Gull Inc. is considering the acquisition of equipment that...

Accounting
Q

Ayayai Furniture Ltd. uses a perpetual inventory system and has a beginning inventory, as at...

Accounting
Q

method is not on occeptoble method under generally actepted sctounting principles (CUP). method satisfies the...

Accounting
Q

6. Dividends, repurchases, and firm value Remember that the primary goal of a firm is...

Finance
Q

Parker & Stone, Incorporated, is looking at setting up a new manufacturing plant in South...

Finance