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-Dominant- [34]
3 years ago
5

When of alanine are dissolved in of a certain mystery liquid , the freezing point of the solution is less than the freezing poin

t of pure . Calculate the mass of sodium chloride that must be dissolved in the same mass of to produce the same depression in freezing point. The van't Hoff factor for sodium chloride in . Be sure your answer has a unit symbol, if necessary, and round your answer to significant digits.

Chemistry
1 answer:
vitfil [10]3 years ago
7 0

Answer:

16.5 g

Explanation:

The van't Hoff factor is a relation between the ideal value of a solution's colligative properties and the observed colligative properties.

Check the attached files for detailed solution

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Every colloid consists of two parts :colloidal particles and the dispersing medium.

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Why is the water cycle called a cycle and not a system?
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Answer is "sucrose".

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Which step in the free-radical chlorination of methane do you expect to be the most exothermic? attempt this problem without loo
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Propagation, a process in which chlorine free radicals react with methane molecules and remove a hydrogen atom from the alkane to produce hydrogen chloride and an alkyl radical e.g., \cdot \text{CH}_3. The carbon-containing free radical would react with chlorine molecules to produce chloromethane and yet another chlorine free radical. This process can well repeat itself to chlorinate a significant number of methane molecules.

Termination. Free radicals combine to produce molecules. For example, two chlorine free radicals would combine to produce a chlorine molecule, whereas two alkyl free radicals would combine to produce an alkane with two-carbon atoms in its backbone.

Chemical processes that increase the stability of a substance reduces its chemical potential energy. Energy conserves, thus such processes would also release energy equal to the potential energy lost in quantity. Free radicals are unstable and- as seen in the propagation step- compete readily with neutral molecules for their electrons. The propagation step keeps the number of free radicals constant and is therefore more exothermic than the initiation step. The termination step reduces the number of free radicals, increase the stability of the system by the greatest extent, and is therefore the most exothermic step among the three.

3 0
3 years ago
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slega [8]

Answer:

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Explanation:

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