Practice Quantitative IR Applications - 3.3.3 | Unit 11: Measurement and Data Processing | IB Grade 11: Chemistry
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3.3.3 - Quantitative IR Applications

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the Beer-Lambert law formula?

💡 Hint: Think about what the variables represent.

Question 2

Easy

Define molar absorptivity.

💡 Hint: It is important to know its unit of measurement.

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 does the Beer-Lambert law relate to?

  • Pressure and temperature
  • Absorbance and concentration
  • Volume and density

💡 Hint: Focus on what each term of the law signifies.

Question 2

True or False: Molar absorptivity is higher in IR spectroscopy than UV-Vis.

  • True
  • False

💡 Hint: Consider the differences in optical properties of these spectroscopies.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Given the absorbance of a solution as 0.75, and knowing the molar absorptivity is 500 L mol⁻¹ cm⁻¹, calculate the concentration when the path length is 2 cm.

💡 Hint: Rearranging the Beer-Lambert law will be essential.

Question 2

If two compounds have overlapping IR peaks, how can you identify them separately? What strategies can you suggest?

💡 Hint: Think about mathematical techniques that could aid in separating signals.

Challenge and get performance evaluation