Trigonella foenum-graecum‚ generally known as Fenugreek is a species that belongs to the family Fabaceae. Fenugreek has a extensive history dating around 4000 B.C and is located around the Mediterranean region and Asia. The usage of Fenugreek is expansive‚ the Egyptians consumed fenugreek for nutrition and used it to embalm their dead. The Jews combined fenugreek with boiling oil during war‚ with the belief that fenugreek would repel the Romans and make them lose their footing. African and Middle
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Objective The objective of this experiment is to perform a steam distillation using a microscale distillation apparatus and isolate a natural product from cloves. Introduction By performing steam distillation we can isolate eugenol at lower temperature than its usual boiling point of 248 degree Celsius. Eugenol belongs to a category called essential oil. Many of these compounds are used as flavoring and perfumes and in the past were considered the essence of plant from which they were derived
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In the fume hood‚ approximately 2g of Ca(OH)2 was dumped from a vail into a 250ml beaker. To avoid any left-over Ca(OH)2 inside the vail‚ certain amount of distill water wad added to it‚ and the vail was shook several times after the lid was closed. Pouring the solution in the vail into the beaker‚ and add distill water until it reached the 100ml line. Then‚ the beaker was put on top of a magnetic stir with a magnetic stir bar placed in it. Turning on the magnetic stirrer and allowing the stir bar
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Lab #5: Grignard Reaction – Synthesis of Triphenylmethanol John Kang Chem 152L Performed: 7/20/04 Date submitted: ________________ Lab Partners: Sang Lee‚ Vicky Lai TA: John Stanko Abstract: This experiment explored the synthesis of triphenylmethanol through the use of Grignard reagents. The percent yield of the product was 10% on a relatively humid day. The melting point was calculate to be 127.2oC with a literature value of 162oC. An IR spectrum of the product was taken and used
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Separating the components of Panacetin Umar Hussaini Sneha Ray 9/30/14 Abstract In this lab we separated components of a simulated preparation‚ panacetin and making use of its acid base properties. To obtain such a pure compound‚ the compound we want must be separated from its other natural components‚ which can be done by manipulating physical and chemical properties. Panacetin contains sucrose‚ aspirin and an unknown which can be acetanilide or phenacetin in which phenacetin
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The objective of this experiment was to synthesize 3-nitrochalcone from 3- nitrobenzaldehyde. This was accomplished with a Diels-Alder reaction that utilized 3-nitrobenzaldehyde and acetophenone. After the reaction was completed‚ purification of the product was conducted using semi-microscale recrystallization. The melting point of the product was 136-141 oC‚ which is in the close vicinity of the literature melting point of 146 oC. The theoretical yield of 3-nitrochalcone was 0.253g and the
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Bromination Solo Experiment 3 – Individual Lab Report (Save as pdf and submit‚ due by 12:00 NOON one week after experiment) Last Name: First Name: TA Name: Date Lab Performed: Date Lab Submitted: Group A‚ B‚ or C: Comments for Grading TA: (Please indicate if you performed the lab on a day other than your regularly scheduled day and/or with a TA other than your regular TA). Page Limit: report must not exceed FIVE pages (including this page) LIMIT DOES NOT INCLUDE ANY GRAPHS‚ SPECTRA
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In part 1 the results of the solubility do not agree with the with rules of solubility most likely because we put too much solid in the test tubes and not enough water to dissolve it. They should have dissolved because the anything with nitrate should be soluble. With the pH‚ when the mixture where compared with the chart all of them except NaCl where a shade of blue which means that they have a pH of 8-14‚ depending on the darkness of the shade‚ meaning that they are a basic solution. When reacting
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EXPERIMENT 1: TITLE: ISOMERISM AND KINETICS IN COORDINATION CHEMISTRY OBJECTIVE: 1. To prepare and study the kinetics of the interconversion of some of the isomers of a typical coordination compound. INTRODUCTION: Isomerism played a central role to establish the basic concept in coordination chemistry while reaction kinetics of coordination compound is known as the area of continuing intense research activity. The mechanism of the reactions of coordination compounds relevance
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CHEMICAL PROCESS PRINCIPLES (CEN 1022) Tutorial 3 : Process Variables 1. The specific gravity of gasoline is approximately 0.70. a) Determine the mass (kg) of 50.0 liters of gasoline. b) The mass flowrate of gasoline exiting a refinery tank is 1150kg/min. Estimate the volumetric flow rate in litres/s. 3. How many of the following are found in 15.0kmol of benzene(C6H6)? a) kg C6H6 b) mol C6H6 c) Ib-mol C6H6 d) mol (g-atom) C e) mol H f) g C g) g H h) molecules
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