1.5 - HL: Spectrophotometry and Beer-Lambert Law
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Practice Questions
Test your understanding with targeted questions
Define absorbance in the context of spectrophotometry.
💡 Hint: Think about light interaction with the solution.
What is the formula of the Beer-Lambert Law?
💡 Hint: What relationship does absorbance represent?
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the Beer-Lambert Law state?
💡 Hint: Remember the key variables in the Beer-Lambert Law.
True or False: Molar absorptivity is the same for all substances.
💡 Hint: Think about how different substances absorb light.
1 more question available
Challenge Problems
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A researcher prepares a calibration curve for a dye solution, yielding absorbance values of 0.1, 0.2, and 0.3 for concentrations of 0.01, 0.02, and 0.03 mol dm⁻³ respectively. If an unknown sample has an absorbance of 0.25, what is its concentration?
💡 Hint: How can you use the known concentrations to determine the unknown?
During an experiment, deviations from the Beer-Lambert Law were noted at a concentration above 0.05 mol dm⁻³. What could account for this anomaly?
💡 Hint: Consider what happens to light passage in concentrated solutions.
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