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Firdavs [7]
3 years ago
11

What is the primary consideration in choosing a solvent for crystallizing a compound

Physics
1 answer:
Nina [5.8K]3 years ago
6 0

Answer:

1. The compound should be dissolved at the solvent boiling point.

2. It should be better none of the compound dissolve while at room

   temperature.

3. The compound must have lower boiling point (low boiling point) than

    melting point in hot solvent so to avoid it melts.

4. The compound have different solubility and impurity.

Explanation:

in order a compound to have a good crystallization, these are the primary consideration that should be followed.

1. The compound should be dissolved at the solvent boiling point.

2. It should be better none of the compound dissolve while at room

   temperature.

3. The compound must have lower boiling point (low boiling point) than

    melting point in hot solvent so to avoid it melts.

4. The compound have different solubility and impurity.

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AysviL [449]

Answer: Provided in the explanation

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3 years ago
Refraction occurs when a wave changes______ as it passes through a different medium.​
Alexandra [31]
The answer to your question is Speed
5 0
3 years ago
An electron with charge −e and mass m moves in a circular orbit of radius r around a nucleus of charge Ze, where Z is the atomic
shepuryov [24]

Answer:

v=\sqrt{\frac{kZe^2}{mr}}

Explanation:

The electrostatic attraction between the nucleus and the electron is given by:

F=k\frac{(e)(Ze)}{r^2}=k\frac{Ze^2}{r^2} (1)

where

k is the Coulomb's constant

Ze is the charge of the nucleus

e is the charge of the electron

r is the distance between the electron and the nucleus

This electrostatic attraction provides the centripetal force that keeps the electron in circular motion, which is given by:

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where

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k\frac{Ze^2}{r^2}=m\frac{v^2}{r}

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