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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the pH of a solution with [H⁺] = 1.0 x 10⁻⁴ M?
💡 Hint: Use the formula pH = -log₁₀[H⁺].
Question 2
Easy
If the Kb of a weak base is 1.0 x 10⁻⁵, find its strength.
💡 Hint: Remember, the higher the Kb, the stronger the base.
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 definition of pH?
- A measure of acidity
- A measure of basicity
- The concentration of hydroxide ions
💡 Hint: Remember that pH indicates hydrogen ion concentration.
Question 2
True or False: pOH is the negative logarithm of the hydroxide ion concentration.
- True
- False
💡 Hint: Think about how pH relates to hydroxide ions.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A solution has 0.15 M acetic acid (Ka = 1.8 x 10⁻⁵). Calculate the pH.
💡 Hint: Use Ka = x² / (C₀ - x), simplify assuming x is small.
Question 2
In a titration of 0.1 M HCl with 0.1 M NaOH, determine the volume of NaOH needed to reach the equivalence point for 25 mL of HCl.
💡 Hint: This is a 1:1 reaction; equal volumes react at equivalence.
Challenge and get performance evaluation