paper chromatography
What is chromatography?
Chromatography is a separation of colours.
What are the examples of colours?
Purple, its made from red and blue.
So like first thing that you have to do is that u make an experiment with your friend in the lab. First take a filter paper than you make a line of 1 cm from the edge of the filter paper, than you put 3 points and choose 3 colours. Take a toothpick and take just a spot of those 3 colours with a 3 toothpicks and place it on the 3 dots that you make. Take a beaker and pour some ethanol then place the filter paper with the 3 dots of different colours, roll the filter paper and make sure that the dots are above the ethanol. Cover the beaker with a watch glass so that the ethanol won’t evaporate. Wait for a while till the colour separates and until it starts to stop separating, you can start to remove the filter paper then analyse it.
There’s a formula for chromatography: Rf (distance travelled by substance divided by distance travelled by solvent)
After you’re done with the experiment you should count the Rf for each of the 3 colours and also the separation colours of one colour. for example purple, the separation colours are red and blue, so you should find the Rf of red and blue.
Chromatography is a separation of colours.
What are the examples of colours?
Purple, its made from red and blue.
So like first thing that you have to do is that u make an experiment with your friend in the lab. First take a filter paper than you make a line of 1 cm from the edge of the filter paper, than you put 3 points and choose 3 colours. Take a toothpick and take just a spot of those 3 colours with a 3 toothpicks and place it on the 3 dots that you make. Take a beaker and pour some ethanol then place the filter paper with the 3 dots of different colours, roll the filter paper and make sure that the dots are above the ethanol. Cover the beaker with a watch glass so that the ethanol won’t evaporate. Wait for a while till the colour separates and until it starts to stop separating, you can start to remove the filter paper then analyse it.
There’s a formula for chromatography: Rf (distance travelled by substance divided by distance travelled by solvent)
After you’re done with the experiment you should count the Rf for each of the 3 colours and also the separation colours of one colour. for example purple, the separation colours are red and blue, so you should find the Rf of red and blue.