Preview

Freezing Point Depression Lab

Satisfactory Essays
Open Document
Open Document
573 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Freezing Point Depression Lab
Ben Quinones
AP Chem
Mr. Perry
25 January 2013

Molar Mass by Freezing Point Depression

Conclusion: My Lab unsuccessfully found the molar mass of the unknown given to us in the lab. We were tasked with finding the molar mass of an unknown compound using the colligative property of Freezing Point Depression. The way we did this was first finding the temperature at which ice crystals form for just regular BHT. Luckily thanks to our TA we were given temperature probes so we could pinpoint exact temperatures. We found that the temperature at which crystallization of BHT was 68.9 Celsius in our lab. After finding temperature of BHT we were tasked with adding the solute cetyl acid to our BHT mixture. We then heated and melted the two substances

You May Also Find These Documents Helpful

  • Satisfactory Essays

    Molar Mass Lab

    • 478 Words
    • 2 Pages

    Objective: to determine the freezing point of pure naphthalene, determine the molar mass of an unknown by measuring the freezing point depression of a solution of the unknown in naphthalene.…

    • 478 Words
    • 2 Pages
    Satisfactory Essays
  • Better Essays

    orgo lab

    • 993 Words
    • 4 Pages

    After recrystallization of the benzoic acid, the starting and ending masses as well as the melting point ranges were determined. This experiment was conducted twice, following the same steps and guidelines.…

    • 993 Words
    • 4 Pages
    Better Essays
  • Good Essays

    Cyclohexane Lab Report

    • 1767 Words
    • 8 Pages

    Abstract: The purpose of this experiment is to determine the molar mass of an unknown solid. The freezing point of a solvent (Cyclohexane) was determined, and compare to the freezing point of Cyclohexane with the addition of two different concentration of unknown solid. The pure substance of Cyclohexane has defined physical properties. However, when a solute is added these properties are determined by the amount of solute added, also known as colligative properties. The temperature of the freezing point was lowered when the solid was added and it decreased as the concentration of the solid increased. The molality of the solute was determined, which was then used to calculate the molar mass of the solid for both trials. An average of the molar mass of…

    • 1767 Words
    • 8 Pages
    Good Essays
  • Satisfactory Essays

    3.09 lab chemistry online

    • 432 Words
    • 2 Pages

    The purpose of this experiment is to determine the formula of a copper sulfate hydrate by heating it up.…

    • 432 Words
    • 2 Pages
    Satisfactory Essays
  • Powerful Essays

    Hypothesis: If the freezing point depression of a solution of an unknown substance and BHT is measured, the molar mass of an unknown substance can be found.…

    • 908 Words
    • 4 Pages
    Powerful Essays
  • Better Essays

    Panacetin Essay

    • 1093 Words
    • 5 Pages

    In each trial each separate component was placed in its own capillary tube, and then a 3rd capillary tube contained a 50/50 mixture of both ingredients. The results of their melting points occurred as is what the table says below.…

    • 1093 Words
    • 5 Pages
    Better Essays
  • Satisfactory Essays

    paper1

    • 374 Words
    • 2 Pages

    Objective: The objective is to become familiar with colligative properties and to use them to determine the molar mass of a substance.…

    • 374 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    The two types of ice that are encountered during flight are clear and rime. Clear ice is formed when the remaining liquid fragments of the water drop flows over the aircraft surface, constantly freezing as a smooth layer of solid ice. Forming occurs when droplets are bigger, such as in heavy rain or in thunderstorm clouds. Clear ice is solid, hard, heavy, and cohesive. Removing it by deicing equipment is very challenging.…

    • 245 Words
    • 1 Page
    Good Essays
  • Satisfactory Essays

    Glacier Lab Report

    • 341 Words
    • 2 Pages

    If the slope is more steep, then the glacier's movements will be faster than a…

    • 341 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Antifreeze Lab

    • 400 Words
    • 2 Pages

    This lab was a phenomenal success! The purpose of determining the freezing points of water, 10% antifreeze, and 20% antifreeze was not only accomplished, but also done so in a splendid manner. The net figures of our experiment were less than 5°C off from the established values.…

    • 400 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    The product was placed in a beaker, and enough aqueous methylated spirit (IMS) was added whilst the mixture was heated to dissolve the product. The mixture was then left to cool and was placed in ice to aid crystallization. The product was vacuum filtrated after a few minutes of standing in ice and the crystals were collected and dried in a vacuum oven at 40 degrees celsius. The mass of the crystals was calculated and the melting point was determined.…

    • 652 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Lab Rules

    • 45071 Words
    • 181 Pages

    Any chemical can be dangerous if it is misused. Always follow the instructions for the experiment. Pay close attention to the safety notes. Do not do anything differently unless told to…

    • 45071 Words
    • 181 Pages
    Good Essays
  • Good Essays

    A solution of 1.570 g of the compound in 16.08 g of camphor is observed to freeze at a temperature 15.2° C below the normal freezing point of pure camphor.…

    • 2464 Words
    • 10 Pages
    Good Essays
  • Satisfactory Essays

    Chasing Ice Analysis

    • 498 Words
    • 2 Pages

    Chasing Ice is a documentary that was released in November 16, 2012. Chasing Ice's filmmaker is Jeff Orlowski. This documentary is about ice and how over the years us humans have been affecting the glaciers because of the climate change. It is conveying its message to the viewers because the climate and the down side to its change.…

    • 498 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Phase Change Lab Report

    • 747 Words
    • 6 Pages

    Abstract: The purpose of this experiment is to study the energy changes associated with the phase changes of water. In this experiment we know the water is gaining energy so we know the heat is going to be positive and we can use the equation MCΔT to find the energy change. The specific heat will be 1 and we just have to measure the water to find the mass and take the temperature before and after we start to find the energy change.…

    • 747 Words
    • 6 Pages
    Good Essays