4.4 - Analytical Techniques: Redox Titrations and Indicators
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Practice Questions
Test your understanding with targeted questions
What is the primary use of redox titrations?
💡 Hint: Consider what happens during a titration.
What color change happens during a potassium permanganate titration?
💡 Hint: Recall the color of KMnO4.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the endpoint of a redox titration indicate?
💡 Hint: Think about what signals the end of a titration.
True or False: Starch is often used in iodometric titrations to visualize the endpoint.
💡 Hint: What does starch do with iodine?
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Challenge Problems
Push your limits with advanced challenges
If you are given a solution of Fe^2+ and titrate it with 30 mL of 0.01 M KMnO4, how many moles of Fe^2+ does your solution initially contain when the color change is observed?
💡 Hint: Remember the stoichiometry relationship from the balanced redox equation.
A sample requires 25 mL of 0.1 M K2Cr2O7 to titrate Fe^2+ to the endpoint, which is characterized by a color change from orange to green. How many moles of Fe^2+ would this sample contain?
💡 Hint: Find the relationship between the dichromate and the ferrous ions from the balanced equation.
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