Chromatography
Cards (20)
- What is the sample of food coloring referred to in the experiment?
- How many known food colorings are used in the experiment?
- What is the first step in carrying out paper chromatography?
- How far from the bottom should the pencil line be drawn on the chromatography paper?
- What should be the spacing between the pencil spots on the chromatography paper?
- What is used to apply the food colorings onto the paper?
- Why is it important to keep the spots small on the chromatography paper?
- What is the depth of water used in the beaker?
- What role does the water play in the chromatography process?
- What must be ensured about the pencil line during the chromatography process?
- Why should the sides of the paper not touch the beaker walls?
- What is done to reduce evaporation of the solvent during chromatography?
- When should the chromatography paper be removed from the beaker?
- What should be marked on the paper after removing it from the beaker?
- What does it indicate if the unknown color separates into three spots?
- How can the identity of the unknown color be determined?
- How is the RF value calculated?
- What does an RF value indicate?
- What should be done if multiple chemicals have the same RF value?
- What are the key points to remember during the chromatography process?