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Gre4nikov [31]
3 years ago
11

Why must pencil be used to draw on paper in paper chromatography

Chemistry
2 answers:
LUCKY_DIMON [66]3 years ago
3 0

Hey there!

The reason why a pencil must be used to draw in a paper chromatography is because its meant to split up the mixture of compounds into its sub parts.



Hope this helped you

<em>Tobey</em>

labwork [276]3 years ago
3 0
Because ink in a pen would be seperated into it's different components on the chromatography paper. Graphite pencils just... don't dissolve like that, they aren't soluble like ink. Graphite would not seperate on the paper, whilst ink would.
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How many grams of solid Ca(OH)2 (74.1 g/mol) are required to make 500 ml of a 3 M solution?
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111.15 g are required to prepare 500 ml of a 3 M solution

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2 years ago
The molar mass of NH3 is 17.03 g/mol. The molar mass of H2 is 2.0158 g/mol. In a particular reaction, 0.575 g of NH3 forms. What
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