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Kobotan [32]
2 years ago
8

How many molecules are there in 4372 grams of Na2SO4?

Chemistry
1 answer:
olga55 [171]2 years ago
7 0

Answer: 30.7 moles

Explanation:

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ompare your TLC analysis with the results of the column chromatography. More polar molecules move more slowly through silica tha
Assoli18 [71]

Biphenyl will have a higher R value than the Methyl Orange.

Explanation:

Biphenyl is a aromatic hydrocarbon and it is a nonpolar molecule.

Methyl Orange is a organic compound with a -SO₃⁻Na⁺ polar functional group which will induce a high polarity in the compound.

You may find the chemical structures of both molecules in the attached picture.

Column chromatography, which use as stationary phase silica gel, is a good technique for separation of the Methyl Orange from Biphenyl.

Being a non-polar molecule,  Biphenyl will have a higher R value than the Methyl Orange.

To separate them you use a appropriate solvent as eluent, as exemple chloroform, and Biphenyl will elute first from the column and after that, as a separate phase, Methyl Orange will elute thus separating them.

Learn more about:

chromatography

brainly.com/question/10296715

#learnwithBrainly

7 0
3 years ago
Please can you help me with this ​
vlabodo [156]

Answer:

C. Pulley.

Explanation:

8 0
2 years ago
Write L values for the following energy levels. What orbital shapes exist in each of
den301095 [7]

Answer:

n   l    m  

����������������������������������

1   0    0 1s 1 2 2

����������������������������������

2   0    0 2s 1 2  

2   1    1,0,-1 2p 3 6 8

����������������������������������

3   0    0 3s 1 2  

3   1    1,0,-1 3p 3 6  

3   2    2,1,0,-1,-2 3d 5 10 18

����������������������������������

4   0    0 4s 1 2  

4   1    1,0,-1 4p 3 6  

4   2    2,1,0,-1,-2 4d 5 10  

4   3    3,2,1,0,-1,-2,-3 4f 7 14 32

Explanation:

4 0
2 years ago
If star a appears to move back and forth by a greater amount than star b, which star is closer to you?
Sveta_85 [38]

If Star A appears to move back and forth by a greater amount than Star B, which star do you think is actually closer to you? Star A. If the parallax angle for a star is 1 arcsecond, what is the distance from the Sun to that star

4 0
2 years ago
In a reaction, 25 grams of reactant
Vsevolod [243]

Answer:

D. 15g

Explanation:

The law of conservation of mass states that, in a chemical reaction, mass can neither be created nor destroyed. This means that the amount of matter in the elements of the reactants must be equal to the amount in the resulting products.

In this question, 25 grams of a reactant AB, was broken down in a reaction to produce 10 grams of products A and X grams of product B. According to the law of conservation of mass, the mass of the reactant must be equal to the total mass of the products. This means that 25 grams must also be the total mass of both products in this reaction. Hence, if product A is 10 grams, product B will be 25 grams - 10 grams = 15 grams.

Therefore, product B must be 15 grams in order to form a total of 25 grams when added to the mass of product A. This will equate the mass of the reactant AB and fulfill the law of conservation of mass.

8 0
3 years ago
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