L13 - Chromatography

• Chemistry
• Secondary Education

Lesson 1 - What is IGCSE Chemistry?

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Lesson 13 - Paper Chromatography

I will be successful if I can...

• identify the apparatus and materials needed for paper chromatography.
• carry out paper chromatography using a suitable solvent.
• state and use the Rf equation.
• make sense of a chromatogram by identifying unknown substances and impurities

The term that describes a substance that does not dissolve in a particular solvent

1. soluble
2. insoluble
3. miscible
4. residue

The term that describes a substance that dissolves in a particular solvent

1. soluble
2. insoluble
3. miscible
4. residue

a

Chromatogram

Chromatogram

• Open your notebook.
• Look for this.
• Read.
• Reflect.
• Complete.

Chemistry

 Journal

• Crystallise the filtrate by evaporation. 
• Do you see any crystals? Does it prove your   hypothesis?

• Filtering the mixture. Do you see any residue?   Predict what the residue is.

Practical Work (Practice)

• Choosing the suitable solvent. Is it polar or non-polar?

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Scientific Question: Does mixture X contain salt?

Name something you did not know before this lesson, 

but NOW you do! 

• You have 15 minutes to complete this task.

Classwork 7: States of matter

• Prepare your black or blue pen.

• Answer the given questions.

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