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ale4655 [162]
2 years ago
8

What can you infer about particle's size?

Chemistry
1 answer:
gayaneshka [121]2 years ago
8 0

Answer:

particle size analysis, particle size measurement, or simply particle sizing is the collective name of the technical procedures, or laboratory techniques which determines the size range, and/or the average, or mean size of the particles in a powder or liquid sample.

Explanation:

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Sticky question: how do you separate molecules that are attracted to one another?.
lions [1.4K]

Answer:

Chromatography uses chromatography paper which is filter paper that is made of cellulose, a polymer. Cellulose is polar, therefore it attracts water molecules, as well as other polar substances. As the solvent reacts with the paper, it competes for the attraction of the molecules being separated.

Explanation:

hope it helps

3 0
2 years ago
What is the molality of a solution of Fe(ClO3), in water that freezes at -2.72°C?
Anon25 [30]

Answer:

0.366m = Molality of the solution

Explanation:

To solve this question we must know the addition of a solute produce decreasing in freezing point regard to the pure solvent. The equation is:

ΔT = m*Kf*i

<em>Where ΔT is change in freezing point </em>

(As freezing point of water is 0°C, the ΔT is 2.72°C)

<em>Kf is freezing point depression constant = 1.86°C/m for water</em>

<em>i is Van't Hoff factor. The number of ions produced when 1 mole of the salt is dissolved = 4 ions for Fe(ClO₃)₃, Fe³⁺ and 3 ClO₃⁻ ions</em>

<em>m is molality of the solution.</em>

<em />

Replacing:

2.72°C = m*1.86°C/m*4

<h3>0.366m = Molality of the solution</h3>

<em />

3 0
3 years ago
What the name of th compound Mg (NO3)2
telo118 [61]
I'm almost certain that it is Magnesium Nitrate
4 0
3 years ago
Based on its position in the periodic table, the element sulfur would be expected to have how many valence electrons? A: 4 B: 6
ExtremeBDS [4]
C. 6 Valence electrons. Remember that the family that they are in will determine the number of valence electrons that element will have. Sulfur is in family 16 so it will have 6 Valence electrons.
8 0
3 years ago
Read 2 more answers
Special structures in the cells of plants capture sunlight energy to power photosynthesis. What materials must plants obtain fro
Svetach [21]

Answer:

Sunlight

Water

And carbon dioxide

Additional information :

6CO2 + 6H2O → C6H12O6 + 6O2

3 0
2 years ago
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