WebAug 8, 2024 · While molarity is based on the liters of solution, molality is based on the kilograms of solvent. Concentrations expressed in molality are used when studying properties of solutions related to vapor pressure and temperature changes. Molality is used because its value does not change with changes in temperature. WebLet's start this discussion the same way we started the others, by defining the normal freezing point. The normal freezing point of a liquid is is the temperature at which a liquid becomes a solid at 1 atm. A more specific definition of freezing point is the temperature at which solid and liquid phases coexist in equilibrium. Let's see if we ...
13.9: Freezing Point Depression and Boiling Point
WebAug 24, 2016 · How does molecular weight affect freezing point? Chemistry Matter Atomic Mass 1 Answer Ernest Z. Aug 24, 2016 If everything else is kept constant, a compound with a higher molecular mass will have a smaller effect on the freezing point. Explanation: The formula for calculating freezing point depression is WebWhat do we need to know about a molecule in order to carry out molarity calculations? Answers 1. Moles/liter 2. The number of molecules in solution. 3. The molecular weight of the compound. 16.7 Freezing Point Depression Review Questions 1. How does a solute affect the freezing of water? 2. How many moles of glucose would be needed to lower the … binky the space cat series order
13.9: Freezing Point Depression and Boiling Point Elevation
WebJun 28, 2015 · Osmolality of a solution is the number of osmoles of solute per kilogram of solvent. The main difference between this and the definition of osmolarity is that the definition uses the mass, rather than the volume, of the solvent. There are several reasons for this, of which the main is the dependence of solvent volume on things like temperature. WebJul 28, 2024 · same boiling point. and. same freezing point. I don't think this is correct as the change in boiling and freezing point depends on molality and not molarity. Hence, according to the options, the one saying different boiling and freezing points seems to be correct to me. However, such exams very rarely have mistakes which are not corrected later. WebJun 22, 2024 · Students determine the molar mass of an unknown fatty acid dissolved in a known fatty acid using freezing point depression and colligative properties. This lab … binky the space cat read aloud