paper chromatography

Question 1

do not involve _____ reactions

Answer 1

chemical

Question 2

steps to paper chromatography

Answer 2

draw pencil line near bottom. draw dot of colour on pencil line. place bottom of paper in solvent.solvent moves up paper, dissolving ink in 2 dots. dissolving ink in solvents. if A has one spot it is pure but 2 spot of colour it is a mixture

Question 3

what stage is the paper and solvent?

Answer 3

paper - stationary phrase
solvent - mobile phase

Question 4

what produces a single spot in all solvents?

Answer 4

a pure compound

Question 5

what produces multiple dots?

Answer 5

compound in a mixture depending on solvents.

Question 6

A more ___ substance is more attracted to the ______ than a _____ substance a more _____ substance travels _____ than a substance which is _______

Answer 6

soluble, mobile phase, less soluble, travels, less soluble

Question 7

How does paper chromatography work?

Answer 7

different substances have different solubilities

Question 8

why is line drawn in pencil?

Answer 8

pen ink could dissolve in the solvent and move up the paper