Practice Weak Bases (2.3.2) - Unit 8: Acids and Bases - IB 11 Chemistry
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Weak Bases

Practice - Weak Bases

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Practice Questions

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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.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

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.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

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.

Challenge 2 Hard

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.

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