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Inessa05 [86]
3 years ago
7

Describe the interactions between molecules in a mixture (analyte), the stationary phase and various mobile phases used in colum

n chromatography and the effect of these interactions on the separation of the mixture.
Chemistry
1 answer:
ratelena [41]3 years ago
4 0
<h2>Hydrophobic interactions. </h2>

Explanation:

  • Column chromatography is a technique used for separation in which a mixture having a mobile phase is caused to move in contact with the stationary phase.
  • The Stationary phase used is a solid and the mobile phase used is liquid.
  • There are interactions between the molecules of the analyte, stationary phase, and the various mobile phases like hydrogen bonding and dipole-dipole interactions.
  • The effect of these interactions is that the compound is retained for a longer time and as there are different interactions between stationary and mobile phases they are carried along with the mobile phases with varying degrees and the separation of the mixture is done.
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A solution means that you're trying to solve (or deal) with a situation.

For example, if you're having trouble trying to solve a math problem, that means that you're trying to figure out that problem.
4 0
3 years ago
If the temperature of a gas is raised from 30°C to 60°C, what happens to the pressure?
Fofino [41]
<h3>Answer:</h3>

The pressure increases by 10% of the original pressure

Thus the new pressure is 1.1 times the original pressure.

<h3>Explanation:</h3>

We are given;

  • Initial temperature as 30°C, but K = °C + 273.15
  • Thus, Initial temperature, T1 =303.15 K
  • Final temperature, T2 is 333.15 K

We are required to state what happens to the pressure;

  • We are going to base our arguments to Pressure law;
  • According to pressure law, the pressure of a gas and its temperature are directly proportional at a constant volume
  • That is; P α T
  • Therefore, at varying pressure and temperature

\frac{P1}{T1}=\frac{P2}{T2}

Assuming the initial pressure, P1 is P

Rearranging the formula;

[tex]P2=\frac{P1T2}{T1}[/tex]

P2=\frac{(P)(333.15K)}{303.15K}

     P2 = 1.099P

                 = 1.10 P

The new pressure becomes 1.10P

This means the pressure has increased by 10%

We can conclude that, the new pressure will be 1.1 times the original pressure.

5 0
3 years ago
What mass of S8 will completely react with 167.6 grams of Fe?
IRISSAK [1]
Answer:
mass of S₈ = 96.1146 grams

Explanation:
The balanced equation that describe the reaction is as follows:
8 Fe + S₈ ..............> 8 FeS

From the equation, we can note that:
8 moles of Fe react with 1 mole of S₈
This means that:
8 * 55.8 grams of iron react with 8 * 32 grams of S₈.
To know the mass of S₈ that will react with 167.6 grams of Fe, we will simply do cross multiplication as follows:
mass of S₈ = (167.6 * 8 * 32) / (8 * 55.8)
mass of S₈ = 96.1146 grams

Hope this helps :)
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3 years ago
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Answer:

Explanation:

Power house of the cell.

It carries the DNA strand from the ribosome

3 0
3 years ago
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I hope this helps!
This might be right..
5 0
4 years ago
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