• Support PF! Buy your school textbooks, materials and every day products Here!

Chemistry 12 - weak acid/electrical conductivity (2 questions)

  • Thread starter katyross
  • Start date
  • #1
5
0

Homework Statement


" Which of the following best describes a weak acid?"
A. Its 0.10 M solution will have a pH = 1.00
B. It may be very soluble, but only partly ionized.
C. It must be very soluble and completely ionized
D. It must be of low solubility and completely ionized


Homework Equations





The Attempt at a Solution





Homework Statement


"Which of the following solutions would typically show the greatest electrical conductivity?

A. 1.0 M weak acid
B. 0.8 M weak base
C. 0.5 M strong acid
D. 0.1 M strong base

Homework Equations





The Attempt at a Solution


I know that the strong acid will conduct electricity better than the weak acid if the concentrations are the same, but because they're not does that mean that more of a weak acid will equal a smaller amount of strong acid? Also, would you ignore both the strong and weak bases?
 

Answers and Replies

  • #2
3
0
For your first question, a weak acid does not ionise much, usually less that 5%.
So i would be going with question B., as for A, it seems a weird this to put in a multi choice question.

an acid or base that strongly conducts electricity is a "strong acid or base", and no dont ignore the bases, as for concentrations, think pretty hard about how concentration effects behaviours of acids and bases
 

Related Threads for: Chemistry 12 - weak acid/electrical conductivity (2 questions)

  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
4
Views
3K
  • Last Post
Replies
3
Views
8K
Replies
2
Views
10K
Replies
4
Views
978
Replies
2
Views
5K
  • Last Post
Replies
1
Views
3K
Top