chemical analysis

Question 1

what is a pure substance

Answer 1

only contains one type of element or compound

Question 2

what is a formulation

Answer 2

mixtures that have been prepared using a specific formula with precise amounts of different components so that they have a particular function

Question 3

what is chemical analysis about

Answer 3

the instruments and methods we use to separate, identity, and quantify different substances

Question 4

how should you carry out paper chromatography

Answer 4

1. draw a line using a pencil on the bottom of a piece of filter paper, this is the baseline
2. add your sample of ink to the baseline
3. fill a beaker with a shallow amount of solvent
4. place the filter paper in the solvent, but do not submerge it
5. wait for the solvent to seep up the paper and the dyes in the ink to dissolve in it
6. the dyes will move up and separate