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Usimov [2.4K]
1 year ago
8

Why is paper chromatography an appropriate technique?

Biology
1 answer:
True [87]1 year ago
3 0

Paper chromatography is an efficient method since it uses little material and is relatively quick. The partitioning principle is used in paper chromatography for separations. Substances are divided between a stationary phase and a mobile phase in paper chromatography.

An analytical technique for separating coloured compounds or substances is paper chromatography. Since alternative chromatography techniques like thin-layer chromatography have taken its place in the laboratory, it is now largely utilized as a teaching tool (TLC). Two solvents are used in two-dimensional paper chromatography, which rotates the paper 90 degrees between solvents. This is helpful for sorting out complicated mixtures of chemicals with comparable polarity, like amino acids. There are three parts to the setup. A solution that rises the stationary phase as a result of capillary action is known as the mobile phase. The stationary phase typically consists of polar inorganic solvent water, while the mobile phase typically consists of a combination of non-polar organic solvents. In this instance, the stationary phase, water, is supported by paper. Polar water molecules are trapped in the cellulose network of the host paper's empty space. In contrast to paper chromatography, which uses less absorbent paper as its stationary phase, TLC uses a layer of adsorbent (often silica gel or aluminium oxide) as its stationary phase.

To learn more about Paper chromatography here

brainly.com/question/1394204

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Describe how home heating and cooling has changed over time, and how it has remained the same.
Delicious77 [7]
Heating is still done largely by burning fuels, like it has been in the past, although people now have central heating to circulate the warm air throughout the house. Some people use electric heaters and people used to use cool water to cool their houses. Now people use electric air conditioners.
5 0
3 years ago
1. Based on the graph, make an inference about where the "community acquired" penicillin resistant S. aureus originated from.
antoniya [11.8K]

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8 0
4 years ago
Marsha is eating a chocolate bar that contains hazelnuts and other ground nuts. However, as the bar has a bad taste, she stops.
ankoles [38]
Most probably mould type of fungus must have infested the nuts... the type we see if bread is left open
7 0
4 years ago
Read 2 more answers
What are the negative effects of rising ocean temperatures? Check all that apply.
masha68 [24]

Answer:

Option (1) and (3)

Explanation:

The ocean covers a large portion of earth and the temperature of the ocean rises due to the high absorption of heat. This is because of the higher amount of incoming solar radiation and the increasing green house gases in the atmosphere of the earth.

This increasing temperature of the ocean has certain negative effects.

Due to the increasing ocean temperature, the ocean water will become warm that will enhance the temperature of the polar water, as a result of which the glaciers and ice caps of the polar region will melt.

The increasing ocean water temperature will lead to the evaporation of water into the atmosphere, which will eventually cause rainfall. This will cause flooding in the low-elevated coastal areas. There occurs increasing frequency of major storms.

Thus, the correct answers are options (1) and (3).

4 0
3 years ago
What would happen if you put a gummy bear in regular water
AlladinOne [14]

Answer: It would just float around.

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5 0
3 years ago
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