Practice Example Calculations (3.2.4) - Unit 8: Acids and Bases - IB 11 Chemistry
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Example Calculations

Practice - Example Calculations

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Practice Questions

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Question 1 Easy

What is the dissociation equation for a weak acid?

💡 Hint: Think about what happens when a weak acid is added to water.

Question 2 Easy

What is Ka?

💡 Hint: Recall the equilibrium expressions we studied.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the formula for calculating Ka?

Ka = [H+][A-]/[HA]
Ka = [HA]/[H+][A-]
Ka = [B+][OH-]/[B]

💡 Hint: Remember the definitions linked to weak acids.

Question 2

True or False: The percent ionization of a strong acid is high.

True
False

💡 Hint: Think about the behavior of strong versus weak acids.

1 more question available

Challenge Problems

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Challenge 1 Hard

Calculate the percent ionization of a weak acid with a concentration of 0.10 M and Ka = 1.0 × 10⁻⁵.

💡 Hint: Use the formula for percent ionization we've discussed.

Challenge 2 Hard

Determine the pH of a solution of a weak base with [OH⁻] concentration of 0.005 M.

💡 Hint: This requires using the logarithmic pOH to find pH.

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