FRACTIONAL DISTILLATION *Ibale‚ I.‚ Ibanez‚ E.‚ Jao‚ E.‚ Joson‚ E.‚ Juanico‚ R. 2D Pharmacy‚ Faculty of Pharmacy‚ University of Santo Tomas Abstract Distillation is a commonly used method for separating mixtures based on differences in the conditions required to change the phase of components of the mixture. The product obtained by distillation is called the distillate. Volatility is the property of changing readily from a solid or liquid to a vapor. There are two types of distillation‚ simple
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f Fractional Distillation of a Solution Results 1. On a single graph‚ plot boiling point versus volume of distillate curves for the two distillations of the cyclohexane/toluene solutions (one from the simple distillation experiment and one from the fractional distillation experiment). The graph is to be computer generated and presentation quality (e.g.‚ appropriately scaled and labeled axes‚ descriptive title‚ and discernable data points). The data points are to be connected with a smooth
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Questions: 1. One mole of a compound A‚ with vapor pressure 400mmHg at 50oC‚ mixed with 3 moles of compound B‚ with vapor pressure 480mmHg at 50oC to form a homogeneous solution. What is the vapor pressure of mixture at 50oC? XA =moles of A\total No. of moles XA =1\4 XB=3\4 Ptotal=PAoXA+PBoXB =400*1\4 + 480*3\4 = 460mmHg 2. Why should a distilling flask be filled not less than 1\3 filled or more than 2\3 full? This is to allow the liquid being heated room to expand as it turns
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Abstract The purpose of this experiment was to perform a liquid-liquid extraction method to extract the caffeine from the tea bags that were provided‚ and then recrystallize the caffeine. The solvents used in the experiment were an aqueous sodium carbonate and dichloromethane (DCM). Anhydrous calcium chloride pellets were used to dry the solution and emulsion layer and the DCM was then decanted. After washing the anhydrous calcium chloride pellets with more DCM‚ the solvent was evaporated‚ leaving
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I. Introduction Fractional distillation is the separation of a mixture into its fractional parts that entails many concurrent vaporization-condensation cycles. This works because of different boiling points of individual substances. The temperature of the fractional distillation column decreases as its length increases. A higher boiling point component condenses on the column and returns to the solution whereas the lower boiling point component passes through the column and is collected in a receiver
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point and melting is affected by pressure‚ molecular weight‚ structure‚ intermolecular interactions and most of all impurities present in the compound. INTRODUCTION The melting point of a substance is the temperature at which the material changes from a solid to a liquid state. Pure crystalline substances have a clear‚ sharply defined melting point. During the melting process‚ all of the energy added to a substance is consumed as heat of fusion‚ and the temperature remains constant. A pure substance
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Introduction: The theory behind the extraction of a solution containing benzoic acid‚ cellulose‚ and methyl orange involves many components pertaining to the fundamental ideas of solubility and polarity. Using the concepts of like dissolving like and acid base reactions‚ a solution of organic acid (benzoic acid)‚ a water soluble compound cellulose‚ and an organic soluble compound methyl orange‚ can be separated and benzoic acid can be isolated by a method of extraction. At the fundamental level
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Arranged a fractional distillation apparatus used a 100mL round-bottomed flask for the solution and used a 50mL round- bottomed flask cooled in ice an ice bath as the receiver of the reaction. The 65% sulfuric solution was prepared in a clean 125mL Erlenmeyer flask it contained 20.0 mL of deionized water and 20mL of concentrated sulfuric acid was added carefully with some swirling in between. The diluted acid was cooled with an ice water bath to 20-25ºC. to the cooled sulfuric acid cyclohexanol was
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Steam Locomotives were first made in the 18th century. William Murdoch first made a prototype in 1784. An early working model was built by a steam boat pioneer John Fitch. Richard Trevithick (13 April 1771 – 22 April 1833) was a British inventor and mining engineer from Cornwall. Born in the mining heartland of Cornwall‚ Trevithick was immersed in mining and engineering from a young age. The son of a mining captain‚ he performed poorly in school‚ but went on to be an early pioneer in steam-powered
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Foundation Improving social well-being through education‚ research and innovation Social Policy Education Capacity Building Teachers Apply for Funding Nuffield Foundation » Teachers » Practical Biology » > Bio molecules » DNA » Extracting DNA from living things Practical Biology A collection of experiments that demonstrate biological concepts and processes. In partnership with Society of Biology logo Search Practical Biology go Society of Biology CLEAPSS Topics > Cells to systems >
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