Chemistry, asked by maameafuaadobea, 1 month ago

How to find the molar mass without using the periodic table

Answers

Answered by realanshuu
32

Answer is :

From Boiling Point Elevation.

Explanation :

Determine the moles of unknown (the solute) from the molality of the solution and the mass of solvent (in kilograms) used to make the solution.

Determine the molar mass from the mass of the unknown and the number of moles of unknown.

Answered by devanayan2005
0

Answer:

Here is your answer.

Explanation:

In the laboratory, freezing point or boiling point data can be used to determine the molar mass of an unknown solute. Since we know the relationship between a decrease in freezing point and the concentration of solute, if we dissolve a known mass of our unknown solute into a known amount of solvent, we can calculate the molar mass of the solute. The Kf or  Kb of the solvent must be known. We also need to know if the solute is an electrolyte or a nonelectrolyte. If the solvent is an electrolyte, you would need to know the number of ions is produced when it dissociates.

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