Practice Chemical Identification Via Reference Standards (2.2) - Analysis Methods – Gas Chromatography (Mass Spectrometry)

Practice: Chemical Identification via Reference Standards

Lesson 2.2Analysis Methods – Gas Chromatography (Mass Spectrometry)

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9 questions

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3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What does mass spectrometry measure?
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Think about what the term 'mass spectrum' implies.
Question 2.
What is a reference standard?
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Consider why we need a baseline for comparisons in science.
3Question 3.
What does mass spectrometry help to identify?
- Only the mass of molecules
- Composition of chemical compounds
- Only known compounds
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Think about the information we gather from the mass spectrum.
4Question 4.
True or False: Mass spectrometry requires ionization of samples before analysis.
- True
- False
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Consider how mass spectrometry is described when we talk about it.
Question 5.
You are tasked with identifying a hazardous chemical found at a spill site. Describe the method you would follow using mass spectrometry.
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Remember the steps we discussed regarding ionization, analysis, and identification.
Question 6.
Explain how you would handle a situation where your mass spectrum does not match any available reference standards.
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Think about ways scientists can deduce information when faced with uncertainty.

5 more questions in this section. Enroll free to practise them all.