Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
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.
Practice 4 more questions and get performance evaluation
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What defines a weak base?
💡 Hint: Consider the differences between weak and strong bases.
Question 2
True or False: Ammonia is a strong base.
💡 Hint: Review the definitions of strong and weak bases.
Solve 2 more questions and get performance evaluation
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.
Challenge and get performance evaluation