Evaporation Essays

INTRODUCTION The objective in this experiment is to better understand why liquids evaporate at different rates. In doing so, investigation of the factors that determine the intensity of the intermolecular forces by the rate of evaporation must be obtained in the following seven liquids: methanol, ethanol, propanol, butanol, water, pentane, and acetone. Intermolecular forces are forces that exist between molecules whereas intramolecular forces are the forces that hold atoms together within a molecule

how water is treated, and facts about water treatment plants. This virtual trip taught me a variety of information that I didn’t know about the water cycle and water treatment plants. The water cycle has many steps in its process. The steps are evaporation, condensation, precipitation, surface runoff, accumulation, transpiration, and evapotranspiration. Evapotranspiration is when plants pull the ground water up into their stem and then their leaves, and then they release it back into the air. The

the stomata on the pansey to continuously be open in an attempt to exchange gases for photosynthesis, but were losing water through evaporation instead. The background also states water potential is the measure of the potential energy of water that water flows from areas of high water potential to low water potential. It finally states that heat increases the evaporation of the water within the stomates which ultimately increases the rate at which water moves from root to leaves. This indicates that

Amino acids are known as the building blocks of all proteins that consists of 20 amino acids which are found in within proteins convey a vast array of chemical versatility. Amino acids are comprised of a carboxyl group and an amino group that attached to the same carbon atom which is the α carbon. They vary in size, structure, electric charge and solubility in water because of the variation in their side chains (R groups). Detection, quantification and identification of amino acids in any sample

Discussion: In this lab, we used two techniques to purify a liquid. The two techniques we used were, simple and fractional distillation. Simple distillation separates distillates from less volatile substances. At the start of the lab the apparatus is set up for simple distillation. Cyclohexane is put into 25mL round-bottom flask. It is heated to a boil. Once it starts boiling, it evaporates up touching the tip of the thermometer and into the condenser, and out into a graduated cylinder

What is fractional distillation? Fractional distillation is a method of separating miscible liquids using heat. This technique is used for the separation of liquids which dissolve in each other. Several simple distillations are completed during fractional distillation using only one apparatus. During the process a mixture is separated into several parts called fractions. Mixtures contain different substance with different boiling points, the differences in boiling points is the main reason fractional

Fractional Distillation Kaisha Butz Lab Partner: Jenna Knafo Instructor: Dr. Beatrix Aukszi LA: Paige Swalley 09/23/2014 Abstract: The purpose of this experiment was to fractionally distill a hexane/toluene mixture and to analyze the fractions. It is hypothesized that the first fraction will contain only hexane, the second a mixture of both, and the third just toluene. In order to separate the toluene and the hexane a Hickman still set-up was used. Once the mixture was distilled into

Carly Hawn 2/14/23 Fractional Distillation Report The purpose of this experiment was to become familiar with the process of fractional distillation, as well as interpreting mass spectra and different forms of chromatography (gas and high-pressure liquid). Data Table Compound: Toluene Mesitylene Structure: Boiling Point (oC): 110.6 164.8 Molecular Weight (g/mol): 92.141 120.1 Density (g/mL): 0.87 0.86 Sample Weights (mg): 49.7 949 Discussion The resulting sample weights displayed in the

the USA and the UK, undertake extensive research and development on large flash-type evaporator units to achieve lower production cost. The installation of similar evaporators manufactured by other contractors followed the great success of flash evaporation. Subsequently, Sasakura installed the first 5 milliongallon-per-day MSF units at Shuwaikh in Kuwait. Similar units were then installed in the new Kuwait plants located at Shuiabah. The success of these large units, proving that the MSF process

Aim The purpose of this experiment was to use fractional distillation technique to separate cyclohexane and toluene. Background Information Distillation is a technique which is used for separating two or more volatile products based on differences in their boiling points. Distillation can be used to separate a volatile solvent from a non-volatile product and separate a volatile product from non-volatile impurities. Simple distillation consists of a round-bottom flask, a distilling head, a condenser

Introduction: Benzopinacol can be prepared from benzophenone in presence of sun light (photochemically) using isopropanol as the reducing agent in presence of acetic acid. Acetic acid is added to prevent the cleavage of benzopinacol to benzophenone and benzhydrol by the alkali derived from the glass container used for the reaction. Benzopinacol obtained in the first experiment is converted to benzopinacolone by heating under reflux (5 minutes) with glacial acetic acid containing trace amount of iodine

Chapter five taught about the separation of mixtures through a number of different processes. These processes use differences in characteristic properties in the elements of the mixture. For example, fractional distillation uses boiling point to separate liquid mixtures. As the liquid boils, the vapor is redirected through a tube into a different test tube and then condenses. The tube is moved into a different test tube after the first fraction concludes boiling, and then the next fraction can

The purpose of this experiment was to use simple and fractional distillation to separate a mixture of hexane and toluene. In this experiment, the mixture of hexane and toluene in a bottom flask was heated with a boiling chip. Heating the mixture cause it to form vapor, and the condensation of vapor was collected as distillate. The temperature was recorded for every .5 mL collected in each set up and was later plotted to compare the difference between each distillation. The main difference between

Abstract: The purpose of this lab was to separate hexane and toluene from a mixture by collecting fractions of both hexane and toluene through simple distillation. Because hexane and toluene have different boiling points they distill at different times and can be separated easily. We found the refractive index by putting our collected fractions in a refractometer. Once we knew the refractive index we could figure out the percentage of both hexane and toluene in the solution. The first fraction was

Fractional distillation was performed in this lab to separate a mixture of two miscible liquids with a difference in boiling points of less than 40 C, and to predict their identities. After that, gas chromatography was used to confirm the identities of the two liquids in the unknown solution, and to obtain the ratio of the composition of the solution with respect to these two liquids. Distillation is a separation technique that relies on two substances having different boiling points, so that one

Feras Kaid Chem 2415-43 TA: Rio Assessment 1 Conclusion In this lab, there were 4 different distillations that were performed each with the same end goal to separate the two different organic compounds, cyclohexane and toluene. We used the boiling points of the two compounds to separate them using the following 4 techniques: microscale simple distillation, miniscale simple distillation, miniscale fractional packed distillation, and miniscale fractional unpacked distillation. The three different miniscale

Determining Unknowns Through Distillation Introduction Distillation is a technique of separating two miscible liquids by their boiling point differences. This experiment uses distillation to separate and identify two unknown compounds. The two types of distillation are simple and fractional. Simple distillation is used to separate miscible liquids that have a boiling point difference of 100 C or more, while fractional distillation is used to separate miscible liquids that have a boiling point difference

The specific purpose of this experiment is to determine the composition of vapor and liquid phases for different mixtures of a pair of volatile liquids using refractive values and distillation techniques involving the construction of two different types of phase diagrams. Moreover, these different phase diagram might be analyzed and compared individually in order to have a better understanding about the multiple types of phase equilibrium and phase change that occurs. For the procedure, the two components

Holiday baking season is almost here. Are you worried about not having an oven to bake with? Have you recently moved from a city home to a country cabin, and there is no more flick of the switch lights, no more thermostatic heat, and no oven to bake? Luckily, there is more than one way to make your favorite "baked" goods such as your cookies, biscuits, and brownies. However, the cake texture may not be similar to those you make in the oven. But it definitely turns out moist and good enough to gratify

Cell Respiration Lab Research Question What is the optimal temperature for germinating pea-seeds where the rate of respiration is the greatest? Background Information Cell Respiration refers to the biochemical process conducted by the cells of an organism that combines glucose and oxygen to produce energy in the form of ATP, along with two by-products, water and carbon dioxide. The equation representing this chemical reaction is shown below. C6H12O6 + 6 O2 6 CO2 + 6 H2O + ATP Although plants and