. Why do you use a pencil and not a pen to mark TLC plates?

Chemistry

1 answer:

KonstantinChe [14]2 years ago

7 0

Answer:

Pencil is always used to mark chromatography paper or TLC plates because ink may run and interfere with the chromatogram. ... As soon as the paper/plate is taken out, mark the solvent front with a pencil before the solvent evaporates and the front becomes impossible to see.

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A solution is prepared by mixing 93.0 mL of 5.00 M HCl and 37.0 mL of 8.00 M HNO3. Water is then added until the final volume is

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Answer:

$[H^{+}] = 0.761 \frac{mol}{L}$

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Explanation:

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