Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
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.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the pH of a neutral solution at 25°C?
💡 Hint: Consider the equilibrium of water.
Question 2
Easy
If the [H⁺] is 1 × 10⁻¹⁴ M, what is the pOH?
💡 Hint: Use the relationship pH + pOH = 14.
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 is the pH of a neutral solution at 25°C?
- 7
- 14
- 0
💡 Hint: Consider the properties of pure water.
Question 2
If [OH⁻] = 1 x 10⁻⁴ M, what is the pH?
💡 Hint: Calculate pOH first.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Calculate the pH of a 0.25 M ammonium hydroxide solution (a weak base) using Kb = 1.76 × 10⁻⁵.
💡 Hint: Start with [B] as the base.
Question 2
How would the pH change if K_w were to increase to 2.0 × 10⁻¹⁴ at elevated temperature? Discuss the implications for acid-base behavior in solutions.
💡 Hint: Consider the shifts in concentrations of both ions.
Challenge and get performance evaluation