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

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SUMMARY

The discussion centers on the characteristics of weak acids and their electrical conductivity compared to strong acids and bases. A weak acid is defined as one that may be very soluble but only partially ionized, typically less than 5%. In terms of electrical conductivity, a 1.0 M weak acid will generally show lower conductivity than a 0.5 M strong acid due to the latter's complete ionization. Participants concluded that concentration significantly affects the behavior of acids and bases in solution.

PREREQUISITES
  • Understanding of weak acid definitions and properties
  • Knowledge of strong vs. weak acid and base ionization
  • Familiarity with pH calculations and electrical conductivity principles
  • Basic grasp of molarity and its impact on solution behavior
NEXT STEPS
  • Research the ionization constants of common weak acids
  • Study the relationship between concentration and conductivity in electrolytic solutions
  • Learn about the pH scale and its implications for acid strength
  • Explore the differences in behavior between strong and weak bases in solution
USEFUL FOR

Chemistry students, educators, and anyone interested in understanding acid-base chemistry and electrical conductivity in solutions.

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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?
 
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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 don't ignore the bases, as for concentrations, think pretty hard about how concentration effects behaviours of acids and bases
 

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