Mapa mental
chromatography
Conteúdo do mapa
chromatography
to separate and identify components of mixtures
draw a line by pencil
common solevents used = water & ethanol
direction of solvent is up
2 factors effect
- solubility of substance in solvent
- how strong attraction is
substance rise with the solvent as the strength of attraction is more with the solvent & substance than the paper & substance
some substance don't rise as less attraction from paper
to check which colourings are in food
forensic scientists analyse DNA, paints & inks from crime scenes
museums analyse paints to restore old paintings or to detect forgeries
Informações
- Descrição
- GCSE Additional Science (Chemistry) Mapa Mental sobre chromatography, criado por esmewood em 29-11-2014.
- Criado por
- esmewood
- Visualizações
- 3
- Avaliação