Chromatography Experiment: Investigating Inks or Pigments in Black Ink

Chromatography Experiment: Investigating Inks or Pigments in Black Ink

Assessment

Interactive Video

Chemistry, Science, Engineering, Physics

University

Hard

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The video tutorial explains chromatography, a method to separate pigments in black ink using a solvent and stationary phase. It covers the concept of retention factor (RF) value, the setup of a chromatography experiment using filter paper and water, and the analysis of chromatogram results. The tutorial also discusses how different solvents affect the separation of pigments and concludes with a note on pure compounds producing a single spot.

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2 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What factors can affect the RF values of pigments in chromatography?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

How do different solvents impact the results of chromatography as mentioned in the text?

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