Logo
Home Study Material Contact Search
AI Chat FREE
  1. sciences
  2. chemistry
  3. which of the following buffers would be the best c

Which of the following buffers would be the best choice for a desired pH of 3.0:             a....

80.2K

Verified Solution

Question

Chemistry

  1. Which of the following buffers would be the best choice for adesired pH of 3.0:

           a. Acetic acid (pKa=4.74)

           b. HF (pKa= 3.14)

           c. Carbonic acid (pKa=6.37)

           d. Propanoic acid (pKa=4.85)

           e. Not enough information is given

  1. A buffer (1L total volume) contains 0.15 moles ammonia and 0.25moles ammonium chloride (pKa=9.26). What is the pH of that buffersolution? What is the pH after 0.0025 moles of KOH are added?

  1. Which of the following makes the best buffer (assume equalvolumes):
  1. 0.1 M HNO3 and 0.1 M LiOH
  2. 0.1 M acetic acid (Ka = 1.8E-5) and 0.1 M NaOH
  3. 1M acetic acid (Ka = 1.8E-5) and 0.0001 M sodiumacetate
  4. 0.1 M acetic acid and 0.1 M sodium acetate
  1. When adding strong base to a buffer, which component of thesolution is reacting with that strong base? Draw the reaction usingHA for the weak acid and A- for the weak base.

Answer & Explanation Solved by verified expert
3.8 Ratings (614 Votes)
    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: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Statistics
1.2K views

MAT 152 Lab 4    Show your work, where appropriate. Remember that you do not have to...

Psychology
1.2K views

How does Zone of Proximal Development (Vygotsky) relate to Middle Childhood, Cognitive Development and why is...

Economics
1.2K views

Suppose price-taking firms have cost functions given by C(q) = 90 + 5q + 0.025q2. a. What...

General Management
1.2K views

Write a full page Background of Gender inequality in workforce, add the authors citation. (Research Methodology subject)

Biology
1.2K views

Resource partitioning occurs between allopatric species 1 True 2 False

Physics
1.2K views

33 m 18m The Oinga Boinga Cowabunga 11 m 11 5m Car Mass 600 kg...

Calculus
1.2K views

A function R x measures the revenue of a company in millions when producing x...

Accounting
1.2K views

On December 31, 2019, Marigold Inc. borrowed $3,600,000 at 13% payable annually to finance the...

Accounting
1.2K views

Luke Company has three divisions: Peak, View, and Grand. The company has a hurdle rate...

Accounting
1.2K views

What is your opinion of the measures being taken by the tax authorities to ensure...

Accounting
1.2K views

Give two examples of sunk costs, and explain why they are irrelevant in decision making.

Finance
1.2K views

The investment Dani purchased for $7,500 eight years ago is currently worth $11,081. If interest...