GCSE Chemistry: C7 - Analysis

OCR GCSE Twenty First Century Science: Chemistry (2006 Spec.)

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  • Created by: Lewis
  • Created on: 18-05-12 11:09
What is qualitative analysis used for?
To find which chemicals are in a sample.
1 of 5
Why is gas chromatography more accurate than paper or thin layer chromatography?
Gas chromatography can better separate mixtures than the others.
2 of 5
In paper and thin layer chromatography, what is a reference material?
A substance that we believe is in the sample that we are testing.
3 of 5
Why do we use standard solutions in titrations?
To ensure that our results are accurate.
4 of 5
We are performing a titration to find the concentration of a particular acid. When is the end point of the titration reached?
When all of the acid is neutralised.
5 of 5

Other cards in this set

Card 2

Front

Why is gas chromatography more accurate than paper or thin layer chromatography?

Back

Gas chromatography can better separate mixtures than the others.

Card 3

Front

In paper and thin layer chromatography, what is a reference material?

Back

Preview of the front of card 3

Card 4

Front

Why do we use standard solutions in titrations?

Back

Preview of the front of card 4

Card 5

Front

We are performing a titration to find the concentration of a particular acid. When is the end point of the titration reached?

Back

Preview of the front of card 5

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