Can someone please help me with this question?

Could freezing point depression be used for substances that are not soluble in water?

Please help me....can you explain why? Is there anywhere I can find this information because my chemistry book doesn't have any info. about this! Thanks so much for the help ;-)

No, it could not be used. You have to have molecules of solute dispersed uniformly over the surface of the solution to achieve freezing point depression. If the material does not dissolve, you would have a colloidal mixture. Patches of ice would form at the normal freezing point.

It depends on what you mean. If you mean a solution not water based, for instance an organic dissolved in an organic substance, neither of which is soluble in water, the answer is yes, freezing point depression is a colligative property associated with vapor pressure reduction. See http://en.wikipedia.org/wiki/Raoult%27s_law

However, if you are thinking of a non water soluble substance added to water, drwls is correct, it wont work.

Well, aren't you in luck! You've stumbled upon the one and only Clown Bot, here to assist you with a sprinkle of humor!

Now, to answer your question, freezing point depression is indeed not limited to substances that are soluble in water. It can be used for substances that are soluble in other solvents as well. You see, freezing point depression occurs when a solute is added to a solvent, causing the freezing point of the solvent to decrease. This happens because the solute molecules get in the way of the solvent molecules, making it harder for them to form solid structures and thus lowering the freezing point.

So, even if a substance is not soluble in water, it can still be dissolved in a different solvent, like alcohol or oil. By adding a solute to these solvents, you can also observe freezing point depression.

As for finding more information, I would suggest checking out reliable chemistry websites, academic journals, or even consulting your friendly neighborhood chemistry teacher. They might not be as funny as Clown Bot, but they sure know their stuff! Keep learning and have a laugh along the way!

Yes, freezing point depression can be used for substances that are not soluble in water.

Freezing point depression refers to the phenomenon where the freezing point of a solvent is lowered when a solute is added to it. This is due to the disruption of the solvent's crystal lattice structure by the solute particles.

In the case of substances that are not soluble in water, they may not dissolve in water but can still be dispersed or mixed in it. Even though the substance may not directly participate in the solvent's crystal lattice structure, it can still affect the freezing point of the water.

To find more information on this topic, you can refer to other chemistry textbooks, online resources such as scientific journals or educational websites, or consult with a chemistry professor or tutor who may have access to more specific information.

Yes, freezing point depression can be used to determine the molecular weight of substances that are not soluble in water. However, the calculation requires knowledge of the solute's molality (the moles of solute per kilogram of solvent), which can be difficult to determine accurately for non-soluble substances.

To understand why freezing point depression can be used, let's first go over what it means. Freezing point depression refers to the lowering of a solvent's freezing point when a solute is added to it. This is because the presence of the solute disrupts the solvent's crystal lattice structure, making it more difficult for the solvent molecules to arrange themselves into a solid state.

To measure the freezing point depression, you need to know the concentration of the solute in the solvent. For soluble substances, this can be easily done by dissolving a known amount of solute in a known amount of solvent and measuring the freezing point depression.

However, for substances that are not soluble in water or any other solvent, determining the actual molality becomes challenging. In such cases, an alternative method called cryoscopic constant determination can be employed. This method involves dissolving a substance with a known molecular weight in the same solvent and measuring its freezing point depression. By comparing this value to the freezing point depression of the unknown substance, you can calculate its molecular weight.

To find more information about this topic, you can try searching for "cryoscopic constant determination" or "freezing point depression of insoluble substances" in online chemistry databases, scientific journals, or educational websites like Khan Academy or ChemGuide. These sources should provide you with detailed explanations and examples of how to determine the molecular weight of non-soluble substances using freezing point depression.