C8 chemical analysis Flashcards
1
Q
what is a pure substance
A
a single element or compound not mixed with any other substances
2
Q
what is a formulation
A
a mixture that has been designed as a useful product like cleaning products, medicines or alloys
3
Q
what is chromatography used for
A
to separate mixtures and give infomation that can help identify substances
4
Q
how do you calculate Rf value
A
distanced moved by substance / distance moved by solvent
5
Q
what is the test for hydrogen
A
burning splint at the end of a test tube of the gas and listen for a squeaky pop
6
Q
what is the test for carbon dioxide
A
bubble gas through lime water and it ill turn cloudy
7
Q
what is the test for chlorine
A
damp litmus paper turns white
