Heptane Essays

Based on calculations #5 and #6 made above for solving the molecular weight, it was identified that the third unknown volatile liquid was Heptane: 100.20g/mol. Since the observed value was 104.8g/mol, it was assumed that Heptane was the only gas out of all that were listed that shared a similar value. Supported by table 2 and 3 the average molecular weight of acetone and the unknown volatile liquid was calculated to be approximately, 154.5g/mol and 104.8g/mol, respectively. The molecular weight (MW)

The other group’s simple distillation experiment consisted of the alkane mixture of hexane-heptane. The results of the other group’s mixture were similarly conducted in the same experimental manner, therefore the temperature and the area and time were recorded in a respective manner. The first fraction of the hexane-heptane was recorded to have the temperature ranges of 65.9°C-71.2°C. The peak area of the first fraction appeared to be 65.76% at ———, and 34

compounds were miscible or immiscible. Diethyl ether and methylene chloride, diethyl ether and ethyl alcohol, water and ethyl alcohol, heptane and methyl chloride, and heptane and diethyl ether were all were found to be miscible each of these paired compounds showed a homogenous mixture with no chunks or particles left over when combined. On the other hand, water and heptane, water and methylene chloride, and water and diethyl ether were all immiscible, when mixed together it was observed that the compounds

. Introduction Vapor pressure is the tendency of the liquid to evaporate and the amount of gas at equilibrium, while vapor is when molecules move from a liquid phase to a gaseous state. Vapor is basically what liquid produces after it starts evaporating. Liquids evaporate because some portions of their molecules have sufficient energy to flee from the liquid phase and become vapor. Some liquids even evaporate faster than other liquids. This is because some of these liquids can be more volatile

Excess molar volumes were measured at 308.15K as a function of composition by a direct dilatometer method for binary liquid mixtures of 4-methylpentan-2-ol + n-hexane, + n-heptane, + n-octane, + n-decane and + n-dodecane. All the mixtures exhibit positive excess volumes over the whole mole fraction range. VE results of 4-Methylpentan-2-ol with n-alkanes were compared with VE of Hexanol-1 + n-alkanes. The variation of VE with the change in the position of either alkyl group or –OH group is discussed

Solvents hexane, heptane, and methanol have been selected to be used during the experiments. 3.2. Equipment A soxhlet extractor will be used to extract essential oils from the plant material (solid-liquid extraction). A flask will be used to hold the solvents and a condenser

The method of production and separation of propionic acid is a complex one and over the course of years, various methods have been explored, invented and commercialized. The earliest known work performed in the separation of propionic acid dates back to the early 1900’s. To make sure that the work that will be done for this particular project is in a direction that is not explored before, extensive research papers have been read-both form the past and the most recent as well, websites have been searched

Flucloxacillin: - It is a member of the penicillin family that is used as an antibiotic for the staphylococcal infection (bacterial infection) that affects the human tissues of the skin and the lungs (pneumonia). It is also used in the treatment of food (rotten food) and poisoning of theblood. Staphylococcus may also be a risk to the human life if it releases its toxins by some strains of the bacteria to cause toxic shock. - Flucloxacillin is prescribed mainly in Australia & Europe, as it is very

piece of filter paper was placed on the tip of the temperature probe. The string was used to tie the filter paper to the tip of the temperature probe. The probe was then placed in a container of liquid based on its group. Alkanes: Pentane, Hexane, Heptane; Alcohols: Methanol, Ethanol, 1-Propanol, 2-Propanol, 1-Butanol; Misc: Water, Acetone. The probe was let to soak in the liquid for thirty seconds. The date analysis was started after thirty seconds and the probe was left in the liquid for five seconds

Sythetically made drugs in the lab: By extracting the active site ingredient from a plant, replicating it’s structure in the lab and mass producing it, more and more drugs can be developed and produced at a faster pace. The active ingredient in a drug is the main ingredient that is used in medication to kill pain. Pharmaceutical proteins are fast growing drugs for the treatment of disease. New and growing technologies are making proteins easier to produce. Drugs produced in labs can have dosage forms

Tungsten Carbide is a compound synthesized by the reaction of tungsten (metal) powder and carbon black (carbon powder) at temperatures of 2600° - 2700° F. Tungsten has a chemical symbol "W" which comes from the name "Wolfram" and that is how it is known in Europe. There are a total of thirteen tungsten containing ores of which four types are the most abundant. These are: Wolframite - FeMn(WO 4 ) 2 Scheelite - CaWO 3 Ferberite - FeWO 4 Hubnerite - MnWO 4 The thirteen tungsten containing ores are in

Introduction In recent years, there is an increasing demand of flavoured compounds in industry sectors, especially food and beverage, cosmetic and pharmaceutical industries 1–4. These compounds are generally short chain ethyl esters which are characterized by their strong fruity flavour and fragrance. Ethyl hexanoate is such a short chain acid ester which gives an apple-pineapple flavour 5,6. Most of the flavours are extracted from their natural source, but this process can take a long time and

written data and printed gas chromatography data. Discussion The purpose of this experiment was to identify two unknowns and their ratios in a given mixture. The identities of the unknowns were two of either acetone, methanol, hexane, cyclohexane, heptane, toluene, or ethyl benzene. Distillation Distillation is used to remove impurities from a mixture – one component of which must be a liquid. Boiling points are utilized in determining the identity of the unknowns. Types of distillation include