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Helga [31]
3 years ago
8

During the developing of a TLC plate, it is common to place a cover on the chromatography chamber and have a piece of moist filt

er paper line the walls of the TLC chamber. Why is the moist filter paper in the TLC chamber of importance during thin-layer chromatography?
Physics
1 answer:
Artyom0805 [142]3 years ago
6 0

Answer:

The moist filter paper is in charge of preventing evaporation and ensuring the proper saturation of the air of the chromatography chamber.

Explanation:

Thin-layer chromatography (TLC) is a chromatography technique used to separate non-volatile mixtures.

A strip of moist filter paper is put into the chromatography chamber so that its bottom touches the solvent and the paper lies on the chamber wall and reaches almost to the top of the container.

The container is closed and left for a few minutes to let the solvent vapors ascend the moist filter paper and saturate the air in the chamber.

The moist filter paper is in charge of preventing evaporation and ensuring the proper saturation of the air of the chamber.

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2. Find the time taken by the bus to reach the stop. need only group B, 2 answer
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Answer:

t = 2 seconds

Explanation:

In 2nd question, the question is given the attached figure.

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We need to find the time taken by the car to reach the stop. Acceleration of an object is given by :

a=\dfrac{v-u}{t}

t is time taken

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Subduction occurs at which of the following tectonic plate boundaries?
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3 years ago
Rebecca heated 50mL of water from 0 degrees Celsius to 60 degrees Celsius. How much energy did she use to heat the water? Rememb
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Answer:

Q = 12540  J

Explanation:

It is given that,

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We need to find the energy required to heat the water. The formula use to find it as follows :

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So, 12540 J of energy is used to heat the water.

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2 years ago
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