Home Page
Octadecanol And Freezing Point Essay

Octadecanol And Freezing Point Essay

Decent Essays

Show More

The freezing point of the cyclohexanol was about 17.7°C, and the freezing point for the unknown solute mixed into the cyclohexanol was about 6.2°C. So the approximate change in temperature of the two freezing points was about 11.5°C. With this calculated information, the found molar mass of the unknown solute B was about 278.4g/mol, which is close to given molar mass of octadecanol.
Conclusion-
This lab allowed us to determine the molar mass of the unknown solute B by finding the difference in freezing point temperature of the cyclohexanol and the solution with the unknown solute B. My experimental value for the molar mass was 278.4g/mol which means that solute B is octadecanol because its molar mass is 270g/mol. This means that my experimental

Related Documents

Improved Essays
States Of Matter Sleuth Lab Report
- 539 Words
- 3 Pages
States Of Matter Sleuth Lab Report

This can be titrated to determine the number of moles. Once equilibrium hits, the number of moles and weight of the sample can be determined.…
- 539 Words
- 3 Pages
Improved Essays

Read More
Improved Essays
9-Fluorenone Lab Report
- 1277 Words
- 6 Pages
9-Fluorenone Lab Report

Reduction involves increasing the number of carbon hydrogen bonds by adding hydrogen across a double or triple bond which results in an increase in electron density at the carbon atom. Organic functional groups containing double and triple bonds which undergo reduction are unsaturated. The reduction of the double bond by addition of hydrogen atoms results in the product being fully saturated. Metal hydride reducing agents that have different reactivities toward specific functional groups are commonly used in chemical reductions.…
- 1277 Words
- 6 Pages
Improved Essays

Read More
Improved Essays
Analysis Of Kandimonium Lab Report
- 649 Words
- 3 Pages
Analysis Of Kandimonium Lab Report

mass of salt .01 mol Ag(107.868 g) + .01 mol(B) = 2.43g B= 135.132 g Solution C: (mol of Ag)(molar mass of Ag) + (mol of C)(unknown) = mass of…
- 649 Words
- 3 Pages
Improved Essays

Read More
Improved Essays
Dichromate To Isoborneol
- 892 Words
- 4 Pages
Dichromate To Isoborneol

The true value melting point for camphor is 174°C, however the depression in the melting point indicates an impurity. The impurity would most likely be borneol because both camphor and borneol sublime and there wasn’t full control over the heat so when purified both products sublimed. As found on the website chemwiki, with even a small impurity of borneol the melting point of camphor will drastically decrease. The melting point of the recovered product in part two which is isoborneol was 170°C. The true value melting point for isoborneol is 212°C.…
- 892 Words
- 4 Pages
Improved Essays

Read More
Improved Essays
Unknown Compounds
- 695 Words
- 3 Pages
Unknown Compounds

Once the solubility tests were finished, this provided numerical evidence that aided in determining the identification of the compound. From these three weeks of investigation, the group…
- 695 Words
- 3 Pages
Improved Essays

Read More
Improved Essays
Miracle On Ice Research Paper
- 1406 Words
- 6 Pages
Miracle On Ice Research Paper

Miracle on Ice Michael Arbuiso is probably the best ice hockey player ever. He is the caption of his high school hockey team and he is a legend the NHL is waiting for. Michael can score,pass,check,you name it. In his junior year Michael set a record that Sidney Crosby or John Tavares hadn’t set in their career yet, 100 goals,97 assists,in just 82 games.…
- 1406 Words
- 6 Pages
Improved Essays

Read More
Superior Essays
Unknown Compound Analysis Essay
- 2190 Words
- 9 Pages
Unknown Compound Analysis Essay

Identifying an Unknown Compound Using Various Chemical Analysis Techniques Joshua Nash and Aquilla Young Abstract The introduction of this lab report exposes the reader to the different scientific concepts that are to be used such as melting point calculations, retention factors, and solubility in various aqueous solutions. The experimental provides the basics of using a melting point apparatus, determining solubility, and performing thin layer chromatography. In the results section the findings of my experimental are tabulated and presented in a well-organized manner so that the reader can understand how each value was calculated.…
- 2190 Words
- 9 Pages
Superior Essays

Read More
Superior Essays
Little Ice Age Essay
- 1705 Words
- 7 Pages
Little Ice Age Essay

It is strange to think that climate patterns affecting people across the world can affect entire civilizations spread oceans apart. It can be said that the challenges of the Little Ice Age were brought over to Early Colonial Mexico, but more so its effects. One region’s success in going out to venture, trade, and colonize; epitomized by the Dutch’s accomplishments in those three aspects proved to be another regions apocalypse. Due to Europe’s conditions, both climatic and situational led to its inability to trade with Asia. Alternate routes had to be forged through explorations in order to make trade with Asia possible.…
- 1705 Words
- 7 Pages
Superior Essays

Read More
Improved Essays
Analysis Of Acetone And Toluene
- 958 Words
- 4 Pages
Analysis Of Acetone And Toluene

However, this temperature was lower than the boiling point of acetone, the most volatile solvent possibly present in the unknown solution, pointing to a source of error in the measurement of the temperature. This could have been due to an inaccurate thermometer or to an error in placing the thermometer too high. Because the boiling point was so low, the more volatile solvent was estimated to be acetone, which has a boiling point of 56.5°C. After fraction A was collected, the temperature of the stillpot was increased and should have produced a steady increase in a plot of the temperature versus total volume distilled while fraction B (a mixture of the two components) was collected, until a second plateau at the boiling point of the less volatile component. The temperature of the stillpot needed to be increased after collecting fraction A because the liquid left in the stillpot was then composed of a higher percentage of the less volatile component, with a correspondingly higher vapor pressure, meaning that it would boil at a higher temperature.…
- 958 Words
- 4 Pages
Improved Essays

Read More
Superior Essays
Alka Seltzer Experiment Essay
- 1462 Words
- 6 Pages
Alka Seltzer Experiment Essay

The experiment that I will be conducting focuses on how fast one tablet of Alka seltzer can dissolve in various temperatures of water. The core of this procedure is to determine the impact that temperature has on how fast something dissolves. My hypothesis for this experiment would be that the Alka Seltzer that dissolves the fastest would be the one that was placed in the water with the highest temperature. There will be controlled and manipulated variables explained throughout the experiment. The two main things used in this experiment will be the solute and the solvent, which is Alka Seltzer and water.…
- 1462 Words
- 6 Pages
Superior Essays

Read More
Improved Essays
Chasing Ice Analysis
- 679 Words
- 3 Pages
Chasing Ice Analysis

Sungwoong Lee My brother and I watched the film Chasing Ice together on Wednesday. I watched all of the trailers that were on the list. However, among those 5 films of the list, I decided to watch the Chasing Ice because the scenery of Arctic was magnificent and I’m also interested in topic of global warming and wanted to know more about how the global warming affects to the glaciers in Artic.…
- 679 Words
- 3 Pages
Improved Essays

Read More
Great Essays
Dissolved Impurities Lab Report
- 1596 Words
- 7 Pages
Dissolved Impurities Lab Report

The purpose of this lab is to understand the effect that dissolved impurities will have on the freezing point of a mixture and what additive will affect the the freezing point the most. The freezing point of a liquid is, the point of a substance when the temperature of the solid and the liquid is equal. When water freezes the water molecules become organized and come closer together forming crystal particles of ice. When a solute (like salt) and a solvent (like water) mix together the salt becomes an impurity and makes it so the solution can’t crystallize.…
- 1596 Words
- 7 Pages
Great Essays

Read More
Great Essays
Unknown Ionic Compounds Lab Report
- 1428 Words
- 6 Pages
Unknown Ionic Compounds Lab Report

When calculating the quantitative solubility of the unknown compound in water, the amount of water that was measured in the hydrated cylinder and poured into the flask could have been greater than expected. This is more likely than less water being used because more solute was needed to saturate the solution than expected. Another error that could have occurred during this part of the experiment was that too much of the unknown compound was added accidently to the solution than could dissolve. Most of the error in this lab occurred during the quantitative analysis since all of the percent yields of the precipitate were over 100%. This miscalculation could have been caused by the beakers not being washed out thoroughly between each reaction or by the mass of KCl measured on the electronic scale being greater than exactly 0.5 grams.…
- 1428 Words
- 6 Pages
Great Essays

Read More
Superior Essays
Ice Melts Essay
- 1292 Words
- 5 Pages
Ice Melts Essay

Does the type of liquid affect how fast an ice cube melts? Does the type of liquid affect how fast an ice cube melts? In an experiment (not ours) involving three liquids, pop melted the ice within it the fastest out of the three. Molecules cause ice to melt in a pretty simple way. When salt is thrown on snow or ice, it prevents the ice or snow from freezing over once again.…
- 1292 Words
- 5 Pages
Superior Essays

Read More
Improved Essays
Ice Caps Essay
- 1002 Words
- 5 Pages
Ice Caps Essay

“According to the EPA in the last hundred years the sea level has about risen six to eight inches” (Hohensee). The ice caps are melting at an increasing rate, this is due to the increase in the global temperature. The melting ice is causing ocean and rivers to have a rise in water. The increase in oceans is causing beaches to erode faster. Due to this many coastal cities and factories have faced issue with increased storms and flooding.…
- 1002 Words
- 5 Pages
Improved Essays

Read More

Related Topics