Practice Weak Bases - 2.3.2 | Unit 8: Acids and Bases | IB Grade 11: Chemistry
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2.3.2 - Weak Bases

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Define a weak base.

💡 Hint: Consider how it behaves in solution.

Question 2

Easy

What does Kb represent?

💡 Hint: Think about its role in equilibrium calculations.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What property defines a weak base?

  • It fully dissociates in water
  • It partially dissociates in water
  • It cannot accept protons

💡 Hint: Consider how weak bases behave in terms of proton acceptance.

Question 2

True or False: The Kb of a weak base is used to measure its strength.

  • True
  • False

💡 Hint: Think about what Kb tells you regarding the weak base.

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Challenge Problems

Push your limits with challenges.

Question 1

In a 0.200 M solution of a weak base B with a Kb of 3.5 × 10⁻⁶, calculate the [OH-] at equilibrium under the assumption that x is negligible.

💡 Hint: Use the Kb formula, remember to check if x is negligible.

Question 2

Given that the percent protonation of a weak base is 15% in a solution of 0.5 M, what is the value of x?

💡 Hint: Use the formula for percent protonation to calculate x.

Challenge and get performance evaluation