One Part of Chemistry: Determining Molecule Weight by Freezing Point Depression Method

 

freezing point depression lab report

To determine the molecular weight by using the freezing point depression method. Introduction: When non-volatile solute is added into a pure solvent, the freezing point of the solvent is depressed. This phenomenon is called the freezing point depression. In other word, the solution possesses a lower freezing point than the pure capsreviewq.ml: Goh Kokv. View Lab Report - Freezing Point Depression Lab Report (3) from CHEM at New Mexico State University. Dipaly Bhakta 02/17/ Freezing Point Depression Abstract The purpose of 90%(21). Lab 7 - Determination of the Molar Mass of an Unknown Solid by Freezing Point Depression Goal and Overview In the first part of the lab, a series of solutions will be made in order to determine the freezing point depression constant, K f, for capsreviewq.ml freezing points of these solutions, which will contain known amounts of p-dichlorobenzene dissolved in cyclohexane, will be measured.


Lab Luis Rodríguez, Arturo melgar and Maria Muñoz 10B: FREEZING POINT DEPRESSION LAB REPORT


This preview shows page 1 - 3 out of 4 pages. Subscribe to view the full document. I cannot even describe how much Course Hero helped me this summer. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

New Mexico State University, freezing point depression lab report. CHEM Freezing Point Depression Lab Report 3. Uploaded By mirabhakta The physical properties that the solution and solute do not share are freezing point depression lab report as colligative properties and they depend solely on the solute concentration.

Some of these properties include vapor pressure lowering, boiling-point elevation, freezing point lowering, and osmotic pressure, freezing point depression lab report.

The solvent boils when the vapor pressure, or tendency of solvent molecules to escape, is equivalent to the atmospheric pressure. At this moment, the gaseous and liquid states of the solvent are in dynamic equilibrium and the molecules change from the liquid to the gaseous states and from the gaseous to liquid states at equal rates. The dissolution of a solute with very low vapor pressure, or a nonvolatile solute, raises the boiling point and lowers the freezing point.

The colligative-property law describes these effects, stating that the "freezing point and boiling point of a solution differ from those of the pure solvent by amounts that are directly proportional to the molal concentration of the solute". We started off by preparing a water bath with a sufficient liquid level, about mL in a mL beaker, to cover the bottom half of the test tube when it was placed freezing point depression lab report the water bath.

We began heating the beaker with the water while stirring with a stir. Share this link with a friend: Copied! Other Related Materials 6 pages.

 

Lab 3 - Freezing Point Depression

 

freezing point depression lab report

 

freezing point of the pure solvent. Background: Colligative properties are properties of a solvent, such as freezing point depression and boiling point elevation, which depend on the concentration of solute particles dissolved in the solvent. The decrease in freezing point, ΔTf (freezing point depression) for a near ideal solution can be. FREEZING POINT DEPRESSION LAB REPORT Introduction: Freezing point depression occurs when the freezing point of a liquid is lowered by adding another compound on it. The freezing point of water is 0º, but it can be depressed by adding a solvent such as salt in our experiment. To determine the molecular weight by using the freezing point depression method. Introduction: When non-volatile solute is added into a pure solvent, the freezing point of the solvent is depressed. This phenomenon is called the freezing point depression. In other word, the solution possesses a lower freezing point than the pure capsreviewq.ml: Goh Kokv.