SC-879
Chromatography
Lower Sec Science · Secondary 1 · Hard · Chromatography
A student draws the starting line for paper chromatography using a blue ink pen instead of a pencil.
Why is this a problem?
Why is this a problem?
- The ink will dissolve and interfere with the separation of the samples.
- The ink will stop the solvent from moving up the paper.
- The ink will make the paper too heavy to use.
- The ink will evaporate before the experiment starts.
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