Practice ICP-OES Analysis of Metal Concentration - 4.5 | Unit 11: Measurement and Data Processing | IB Grade 11: Chemistry
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4.5 - ICP-OES Analysis of Metal Concentration

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does ICP stand for?

💡 Hint: It's part of the technique name.

Question 2

Easy

What do we measure in ICP-OES to determine metal concentration?

💡 Hint: Look for the type of light measured.

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 ICP in ICP-OES stand for?

  • Inductively Coupled Plasma
  • Individually Coupled Plasma
  • Inductively Collected Plasma

💡 Hint: Think of the process that precedes the optical emission.

Question 2

True or False: In ICP-OES, the higher the intensity reading, the lower the concentration of the metal.

  • True
  • False

💡 Hint: Consider how concentration affects emissions.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

In an ICP-OES experiment, an unknown sample reads 2340 counts. The slope of your calibration line is determined to be 1258 counts/ppm and the y-intercept to be 5 counts. Calculate the concentration of the metal in the unknown sample and discuss how you would propagate uncertainty in this case.

💡 Hint: Calculate the unknown before bringing uncertainties into play.

Question 2

If two standards, one at 3.00 ppm and the other at 5.00 ppm, yield readings of 2800 counts and 4800 counts respectively, and you want to add a new standard at 4.00 ppm, predict the emission intensity using linear interpolation from the existing data.

💡 Hint: Consider the pattern in the existing data when predicting.

Challenge and get performance evaluation