How to find molar mass of an unknown?
Understand the Problem
The question is asking how to determine the molar mass of an unknown substance. This typically involves identifying the substance's chemical formula and then calculating its molar mass based on the atomic masses of its constituent elements.
Answer
Use colligative properties of the solvent.
The final answer is calculated using colligative properties like freezing point depression or boiling point elevation.
Answer for screen readers
The final answer is calculated using colligative properties like freezing point depression or boiling point elevation.
More Information
Colligative properties depend on the quantity rather than the identity of solute molecules, making them useful for determining the molar mass of an unknown compound.
Tips
Ensure accurate measurements of temperature changes and masses, as errors can affect the final calculations.
Sources
- Calculating Molar Mass Using Colligative Properties - flexbooks.ck12.org
- Determine Molar Mass - chem.purdue.edu
- How to find molar mass of an unknown compound - Wyzant - wyzant.com
