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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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Solute will continue to dissolve in a solvent until:
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The best and most correct answer among the choices provided by your question is the first choice or letter A.

<span>A solute will continue to dissolve in a solvent until an equilibrium is reached.</span>

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
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3 years ago
What is a polyatomic ion? Consulting p.117 in text, list the formulas and names of at least 10 polyatomic ions. When writing the
aleksley [76]

Answer:

The answer to your question is below

Explanation:

Polyatomic ions are ions composed for more than 1 atom. There are polyanions and polycations.

Polyanions have a negative charge and polycations have a positive charge.

Examples

                      Polyanions                             Polycations

  acetate           CH₃COO⁻        ammonium      NH₄⁺¹                                    

  bromate          BrO₃⁻

  chlorate           ClO₃⁻

  hydroxide        OH⁻

  nitrate              NO₃⁻

  nitrite               NO₂⁻

  sulfate             SO₄⁻²

  phosphate      PO₄⁻³

  permanganate  MnO₄⁻

We write parentheses before or after a polyatomic ion to emphasize that the oxidation number of the atom which interacts with it affects all the atoms that form part of the polyatomic ion.

4 0
3 years ago
If an object is only partially submerged in a fluid, which of the following is true?
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The answer is C. <span>The density of the fluid is greater than the density of the object.</span>
4 0
3 years ago
Calculate the volume of acetone with the same mass as 15.0 mL of mercury. The density of mercury is 13.59 g/mL. The density of a
lubasha [3.4K]

Answer:

Volume of acetone = 257.4 mL

Explanation:

Density = mass / volume

Density Hg = Mass Hg / Volume Hg

13.59 g/mL = Mass Hg / 15 mL Hg

13.59 g/mL . 15 mL = Mass Hg → 203.85 g

This is the mass of acetone

Density acetone =  Mass acetone / Volume acetone

0.792 g/mL = 203.85 g / Volume of acetone

Volume of acetone = 203.85 g / 0.792 g/mL

Volume of acetone = 257.4 mL

3 0
3 years ago
Read 2 more answers
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