Practice Weak Bases - 7.2.4 | Chapter 8: Acids and Base | IB Grade 12-Chemistry
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is a weak base?

💡 Hint: Think about how it behaves in water compared to strong bases.

Question 2

Easy

Which base is a common example of a weak base?

💡 Hint: Consider everyday items containing ammonia.

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Interactive Quizzes

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

Question 1

What defines a weak base?

  • Completely dissociates in water
  • Partially dissociates in water
  • Does not dissolve in water

💡 Hint: Consider the differences between weak and strong bases.

Question 2

True or False: Ammonia is a strong base.

  • True
  • False

💡 Hint: Review the definitions of strong and weak bases.

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Challenge Problems

Push your limits with challenges.

Question 1

A solution of a weak base B has a Kb = 1.0 x 10^-5. If the initial concentration of B is 0.1 M, calculate the concentration of OH- at equilibrium.

💡 Hint: Set up an ICE table and don't forget to determine the equilibrium concentrations correctly.

Question 2

A buffer solution contains 0.1 M ammonia and 0.1 M ammonium chloride. Calculate the pH of the solution given Kb for ammonia is 1.8 x 10^-5.

💡 Hint: Remember to convert Kb to pKb and apply the Henderson-Hasselbalch equation effectively.

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