Interpreting chromatograms

12 questions

1. What is an element?
2. True or false? All pure substances are elements.
3. True or false? If something is not pure, it is a mixture.
4. True or false? All mixtures can be separated into their individual components through physical processes.
5. What is the purpose of chemical analysis?
6. Solubility is a measure of how well a substance can ___ in a solvent.
7. The pattern that forms as a result of chromatography is called a ...
8. Match the keyword to its description.
9. Which of the following pieces of apparatus and equipment is **not** essential for chromatography?
10. How can chromatograms be used to identify if a sample is a mixture?
11. A vertical analysis of a sample’s chromatogram can visually determine if a sample is pure or a mixture. This is known as ___ analysis.
12. Given a solvent front at 7.0 cm and a substance spot at 2.3 cm on a chromatogram, calculate the Rf value.

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