1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Marina86 [1]
3 years ago
6

PLEASE HELP!!! Summarize the steps needed to perform paper chromatography

Chemistry
1 answer:
suter [353]3 years ago
6 0

Answer:

Hi!

I might be able to help you!

Explanation:

<u>Step 1:</u>  A horizontal line is drawn near one end (about 1.5 cm from the bottom edge) of the paper.

<u>Step 2:</u> The sample needs to be separated is placed as a small drop or line on to the paper using capillary tube. Labelling the drop by a pencil with an alphabet or number help to identify the compound later. The drops are then soaked on the paper and dried.

<u>Step 3:</u> The paper is then placed into a sealed container with a swallow layer of suitable solvent. The solvent level must be lower than the pencil line or drop on it. The container need to be covered to stop the solvent to evaporate.

<u>Step 4:</u> The solvent rises up the paper chromatography taking each component of the sample with it. The components travel with the solvent depends on three things:

-The polarity of the sample molecule. The non polar components travel faster than the polar component.

-The attraction between the sample molecule and the solvent or solvent mixture.

-The attraction between the sample and the silica.

Suppose any sample compound mixture contains three colored molecules  green, blue and red.

According to their polarity, the order of these compounds is green<blue<red.

-Thus the most non polar green will travel first along with the mobile phase.

-Then blue and at last most polar compound the red one.

You might be interested in
How to find protons neutrons and electrons of carbon?
Kryger [21]
Protons is the number of the element on the periodic table. Electrons are the same number of protons and i'm sorry I do not know neutrons, I hope I helped!

3 0
3 years ago
Which solution would have the lowest freezing point
Vitek1552 [10]

Answer:

Ice and water

Explanation:

4 0
3 years ago
How many grams are in a sample of 0.55 mol of K?
Katyanochek1 [597]
The equation you use here is
mass =moles x Mr

So:
Moles of K - 0.55mol
Mr of K - 39.1

Mass= 0.55x39.1 =21.505g
4 0
2 years ago
According to the periodic table, carbon has an atomic mass of 12.011 u. This indicates that the most abundant isotope of carbon
Eduardwww [97]
The most abundant of all of the isotopes of an element will be the one who's mass the mass of element is closest to. In this case, the mass of atomic carbon is closest to the mass of carbon-12.
Thus, Carbon-12 is the most abundant isotope.
3 0
3 years ago
Read 2 more answers
What effect does salt have on a marshmallow?
Naily [24]

Answer:

The original marshmallow was named for the inclusion of marshmallow root in the recipe. The roots and leaves of the marshmallow plant contain mucilage, a slimy-textured demulcent best known for its use as a homeopathic cough suppressant. Marshmallow root is considered to be soothing and mildly antimicrobial. It has long been used as an herbal treatment for minor digestive issues and skin irritations, although its use in the creation of its namesake confection has long since fallen by the wayside.

Explanation:

So basically salt makes it strecthy! Please mark brainliest!!

3 0
2 years ago
Other questions:
  • Is a Mercury Thermometer a pure substance or a mixture?
    11·1 answer
  • Use electron transfer or electron shift to identify what is oxidized and what is reduced in each reaction :
    5·2 answers
  • When 2.50 g of an unknown weak acid (ha) with a molar mass of 85.0 g/mol is dissolved in 250.0 g of water, the freezing point of
    8·1 answer
  • What is decomposision reaction
    12·1 answer
  • Give the number of significant figures 6.32 g
    9·2 answers
  • Which of the following compounds does NOT contain molecules? A. H2 B. NaCl C. CO2 D. H2O
    10·1 answer
  • An analytical chemist is titrating of a solution of propionic acid with a solution of . The of propionic acid is . Calculate the
    12·1 answer
  • how many grams of silver medal could be recovered from a reaction of 50 g silver nitrate and copper metal
    14·1 answer
  • If you have a room that is 14 feet wide, 20.5 feet long, with 10 foot ceilings. What is the total
    13·2 answers
  • One of the examples of homologous series is given below:
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!