6.11.2 - The pH Scale
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Practice Questions
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What is the pH of a neutral solution?
💡 Hint: Think of pure water at 25 °C.
Is a solution with pH 5 acidic or basic?
💡 Hint: Remember the scale definition!
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does pH measure?
💡 Hint: It is a scale commonly used in chemistry.
True or false: A solution with a pH of 5 is neutral.
💡 Hint: Remember the definitions of acidic, neutral, and basic solutions.
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Challenge Problems
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Calculate the pH of a 0.001 M solution of hydrochloric acid.
💡 Hint: Use the pH formula directly on the H⁺ concentration.
Explain why the pH of a solution changes when an acid is diluted by adding water.
💡 Hint: Consider how dilution affects concentration and thus pH.
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