Evaporation Essay Examples


Linear Shrinkage Test
Words • 550
Pages • 2
AIM: To determine the linear shrinkage likely to be experienced by clay material THEORY: Linear shrinkage is the decrease in length of a soil sample when oven-dried, starting with a moisture content of the sample at the liquid limit. This test is used to measure the percentage decrease in dimension of a fine fraction of a soil when it is dried after having been moulded in a wet condition approximately at its liquid limit. The linear shrinkage is found by…...
Rate of cooling
Words • 454
Pages • 2
The problem for this experiment is to investigate the rate of cooling in three different types of cups. They will be used as typical coffee cups for commercial purposes. The cups a polystyrene cup, a paper cup and a plastic cup. Water has a high specific heat capacity. This makes it a very useful material for storing and carrying heat energy. Its heat capacity is 4200 joules per kilogram per i?? C (4200J/kg i?? C). Heat tends to flow away…...
The Process of Water Evaporation
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Pages • 4
Transpiration is the evaporation of water from plants. It’s not simply a hazard of plant life but it’s the engine that pulls water from the roots to cool the leaf and supply photosynthesis. The concentration of water vapor in the atmosphere is lower than that in the leaf. Because of this difference, water vapor diffuses from the spaces of the leaf, through the stomata in the epidermis. Stomata are in the lower epidermis; the lower surface receives less radiation from…...
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Steam Distillation
Words • 572
Pages • 3
Introduction The purpose of this experiment is to extract Eugenol from Cloves using steam distillation as a purification technique and to transfer Eugenol from the aqueous phase to the MeCl2 phase. With steam distillation, the boiling point of a mixture of immiscible liquids is lower than the boiling points of the individual components. Water from the steam is one of the components of an immiscible liquid mixture. The vapor pressures of each of the components during the distillation are additive.…...
A Separation and Purification Scheme
Words • 727
Pages • 3
Abstract: There are millions of different organic compounds. Most of them are found in mixtures and in order to achieve a pure form they need to be separated, isolated, and purified. However, there are endless numbers of possible mixtures, which make it impossible to have a pre-designed procedure for every mixture. So chemists often have to make their own procedures. The purpose of this experiment was to prepare the student to the real world by them designing their own procedure…...
Downstream Processing
Words • 979
Pages • 4
Student should be able to Define filtration, centrifugation, cell disruption, solvent extraction, chromatography, membrane process, action of force field, evaporation & drying Explain briefly on the concept of each topics stated above List out the uses & importance of each topic stated Introduction Each stage in the overall recovery procedure is strongly dependent on the history & quality of the biological production process. Maximization of production can lead to great difficulties in down streaming and recently more attention is being…...
Evaporationin Our Daily Life
Words • 1943
Pages • 8
In a society based only on materialistic possessions, sometimes we overlook even the simplest of things, and the most valuable to our survival as a human race and as a planet. Everywhere around us people envy great architects and artists because of their remarkable creations. Though, we, as a human race disregard the importance of less tangible commodities, developed by the greatest artist ever, Mother Nature. She has given us the most magnificent and staggering artwork imaginable, our environment. But…...
Extraction and Evaporation Recrystallization
Words • 2627
Pages • 10
1. To the components of a simulated pharmaceutical preparation, Panacetin, and identifying the unknown component of the mixture through extraction and separation methods. 2. To learn how to purify by recrystallization, how to dry them and how to obtain a melting point. PRECAUTION: ACETANILIDE AND PHENACETIN ARE EYE AND SKIN IRRITANTS. Minimize contact with your unknown compound. THEORY: In this experiment, Panacetin, a pharmaceutical preparation will be separated from its components by making use of their solubilities and acid-base properties.…...
Chem 101 Lab Report 2
Words • 1512
Pages • 6
Mixtures are made up of substances or components. If the mixture is fairly uniform in composition, properties, and its overall appearance, it is homogenous. If the component parts are clearly separated, it is heterogeneous. In order to identify the components in a mixture, methods must be used to sort out the components. However, the same methods will not work for sorting all substances. Four different processes would be employed to sort soluble and insoluble components in the following experiment. Introduction…...
Chem Lab Mixtures
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Pages • 6
In this lab, a mixture of naphthalene (C10H8), common table salt (NaCl), and sea sand (SiO2) will be separated using the separation techniques in order to demonstrate the properties of mixtures and their ability to be separated by physical means. INTRODUCTION: This lab was based on the separation of the components of a mixture. A mixture can be defined as a physical combination of two or more pure substances. Separation techniques are used to separate components that are not chemically…...
Separating a Mixture of Compounds
Words • 274
Pages • 1
I.Purpose The purpose of this experiment is to separate three components; SiO₂, NaCl, and NH₄Cl through Sublimation, filtration and evaporation to determine the mass and mass percentage of each component. II.Experimental Method EquipmentChemicals Evaporating DishPowdered Mixture A 2 50ml beakerWater Balance Thermometer Bunsen burner III.Raw Data and Calculations Mass of empty evaporating dish76.00g Mass of evaporating dish + powder mixture sample86.00g Mass of the sample10.00g Sublimation of Ammonium Chloride (NH Cl): Mass of evaporating dish and the remaining sample after…...
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