Practice Choosing the Right Indicator - 7.5.3 | Chapter 8: Acids and Base | IB 12 Chemistry
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Choosing the Right Indicator

7.5.3 - Choosing the Right Indicator

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is an acid-base indicator?

💡 Hint: Think about what shows a difference in acidity or basicity.

Question 2 Easy

What pH is typically associated with the equivalence point of strong acid-strong base titrations?

💡 Hint: Consider the neutral nature of the products formed.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the role of pKa in choosing an indicator?

The range of color change of the indicator.
The temperature stability of the indicator.
How quickly the indicator changes color.
The relationship between pH at equivalence point and color change.

💡 Hint: Consider what pKa represents in relation to the equilibrium.

Question 2

Is methyl orange a suitable indicator for strong acid-weak base titrations?

True
False

💡 Hint: Think about what pH range you'd expect during such a titration.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

You're performing a titration of acetic acid (a weak acid) with sodium hydroxide (a strong base). What indicator would you choose, and why?

💡 Hint: Consider the nature of the acid and base involved.

Challenge 2 Hard

During a titration of hydrochloric acid (strong acid) with ammonia (weak base), you notice the equivalence point is difficult to determine. What could be the problem?

💡 Hint: Think about the characteristics of the weak base and the expected pH ranges.

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