In the second and third parts of the freezing point depression lab, a solute is added to the test tube containing the solvent by pouring it in from a folded piece of weighing paper. If some of the solute is lost between the weighing and the transfer into the solvent, what effect would this have on your experimental molar mass? Explain your answer.
In the second and third parts of the freezing point depression lab, a solute is added to the test tube containing the solvent by pouring it in from a folded piece of weighing paper. If some of the solute is lost between the weighing and the transfer into the solvent, what effect would this have on your experimental molar mass? Explain your answer.
Depression of the freezing point is an excellent experiment to determine the molar mass of an unknown compound experimentally.
It is based on the following equation:
.. (1)
Here,
(it will be a negative value as the freezing point is decreased after the addition of the solute)
= freezing point depression constant.
is the molality of the solution which is given by
... (2)
Here, the solute is our unknown compound.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
