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.
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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.
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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.
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