0
Q
What does gas chromatography do?
A
Separate substances
1
Q
Name two types of machines which can be used to help identify or give us information about a substance?
A
Gas chromatography and mass spectroscopy
2
Q
What does mass spectroscopy do?
A
Tells us the relative formular mass of each substance
3
Q
How can we use gas chromatography to identify a substance?
A
The time it takes for a substance to travel down a column
4
Q
What are the advantages of using these machines?
A
Accurate, fast, and only small amount of substance required.
5
Q
What are the disadvantages?
A
Expensive, and requires specialist training
Chemistry
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