Separatory funnel Essays

Extraction is the process of separating substance from one phase by another phase. It is often used as one of the steps in isolating a product of an organic reaction. A separatory funnel would be used for the isolation from the mixture. A solvent will be used to remove or isolate a compound of interest from a liquid substance. In most cases, water was used as the solvent to the reaction mixture to dissolve the inorganic compound. The organic compounds will be separated from the aqueous mixture by

Chemistry IA Introduction In this report, i will explore the effect of temperature on the caffeine content of White tea. Just like coffee, tea is one of the drunkest beverage for people either just like the taste of it or for those who really needs them to stay fresh in the morning. Caffeine is the chemical that was found within both products. Caffeine is the world's most widely consumed drug. It is a central nervous system stimulant belong to the methylxanthine class. Caffeine can be derived

• Iodine Solution Weigh 7.7g of potassium iodide into a 50cm3 beaker. Use distilled water to help the iodide dissolve. Swirl for a few minutes until the iodide has completely dissolved. Using a funnel to help, pour the potassium iodide into a 500cm3 volumetric flask, make sure all traces of the solution is in the volumetric flask. Using distilled water would be a good method in order to rinse the beaker. Make the solution up to the 500cm3 mark with iodine (1% concentration) • Starch Indicator Solution

Do you know the difference between a tornado and a hurricane? In the map title, “ Hurricanes and Tornadoes in the US,”it shows where tornadoes and hurricanes occur in the United States. Sheldon Hammond wrote the informational text, “ What You Should Know About Tornadoes,” and it explains what tornadoes look like, where they happen, and how to protect yourself. In the, “Basic Facts About Hurricanes,” it explains what a hurricane is and how it can impact. Both tornadoes and hurricanes are severe

250 ml separatory funnel on a ring, making sure that the stopcock is closed and that a clean beaker is placed beneath the exit tube. Transfer the aqueous solution from the beaker to the separatory funnel. Do not transfer any un-dissolved sodium chloride in the beaker to the funnel. Extract the aqueous solution with dichloromethane in the following manner: a) Add 20 ml of solvent to the solution in the separatory funnel. b) Place the plastic stopper (NOT greased) in the neck of the funnel. Shake

minutes. Support a 500 ml separatory funnel on a ring, close stopcock and then a clean beaker is placed beneath the exit tube.  Transfer the aqueous solution from the beaker to the separatory funnel. Do not transfer any un-dissolved sodium chloride in the beaker to the funnel. Extract the aqueous solution with selected solvent in the following manner: a) Add 40 ml of solvent to the solution in the separatory funnel. b) Place the plastic stopper in the neck of the funnel.  Shake c) Slowly remove the

A separatory funnel is attached to the clamp stand with a conical flask below as a receiving flask for the unwanted solution. The separatory funnel works by adding a solution to the mixture and blocking the top with a bung. Then turning the funnel upside down and right way around combines the mixture and the solution aiding in separating the ester from the aqueous layer. The aqueous layer is then removed/released by turning the head of the funnel. The bung must be removed

An addition funnel containing 30% H2O2 was attached to round bottom flask. The flask was then placed in an ice-water bath and allowed to stir and cool. After cooling for five minutes, the H2O2 was added dropwise to the reaction flask. As Br2 formed, the solution began to produce a reddish brown color. Once all of the H2O2 was added, the cyclohexene (1.03 g, 12.6 mmol) produced from the first experiment was then poured into the addition funnel. In a fashion similar to the H2O2

In the separatory funnel, the top layer is the organic solvent and the bottom layer because the aqueous solvent has a higher density thus it sinks. The property of "like dissolves like" can be used to distinguish or to be certain which solvent is on the top or bottom. A few drops of water introduced through the top of the separatory funnel and if the water drops mix with the first layer, then the first layer is the aqueous

and add bromine to those carbons. We will do so by dissolving solid E-Stilbene in dichloromethane (DCM) and adding liquid bromine. Since excess bromine is being used, we use sodium thiosulfate to remove it from the solution and separate in the separatory funnel. We then ice the dibromostilbene crystals, vacuum the solvent, and dry to obtain the sample. FTIR spectroscopy and melting point are used to determine purity. The observed melting point range of 237.5-238.1°C was observed and compared to the

Synthesis of Triphenylmethanol Using the Grignard Reaction and Acid Workup Amanda Sokol Partner: Jack Platacz TA: Edgar Reyes Cruz Lab: Tuesday, 1:40 - 4:30 PM PSH 334 March 17, 2023 Abstract: The purpose of this experiment was to synthesize pure triphenylmethanol by preparing and performing the Grignard reaction followed by an acid workup step. The two-week process combined various techniques used in lab this semester thus far with some new techniques; the first week involved making the Grignard

Once cool to touch the squeeze out all the tea bags carefully without tearing them apart. Using a separatory funnel extract three times with 15.0ml of dichloromethane gently rocking bath and forth the funnel venting the funnel often each time. Carefully decant into a pre-weighed 125ml flask and add the drying agent-calcium chloride pellets- and the organic layer was evaporated off in a warm water bath. Using aluminum

In this lab, the oxidation of a secondary alcohol was performed and analyzed. An environmentally friendly reagent, sodium hypochlorite, was used to oxidize the alcohol, and an IR spectrum was obtained in order to identify the starting compound and final product. The starting compound could have been one of four alcohols, cyclopentanol, cyclohexanol, 3-heptanol, or 2-heptanol. Since these were the only four initial compounds, the ketone obtained at the end of the experiment could only be one of four

substance by performing sublimation and determine the melting point of both crude and pure caffeine. Safety Lab coat, goggles, gloves. Methylene chloride is a carcinogenic substance, therefore should be kept in a well-ventilated place. The separatory funnel stem should be pointed away from the human when the pressure is released Chemicals 1) Methylene chloride – carcinogenic Procedure 1) Isolation of caffeine 6 tea bags, 5 g of calcium carbonate powder and 180 ml

Conducting Results from Various Substitution Reactions that Contain Alcohol Sophia Gruszczyk*, Riley Clark Department of Chemistry and Chemical Biology, IUPUI, 402 N. Blackford St., Indianapolis, IN 46202. segruszc@iu.edu The purpose of this experiment was to determine the structure of a specific product(s) from a given starting material. The reaction that was tested was that of substitution reactions, whether it was SN1 or SN2. Reaction 1 is an SN2 reaction because of the presence of a strong

Seperatory funnel and Evaporation Ethyl acetate (15ml) was used to rinse the receiving flask and the solution was added to a separatory funnel apparatus. The funnel was shaken and the aqueous ethyl acetate layer containing Eugenol was drained to an Erlenmeyer flask. The bottom layer was put through this process again with another 15ml of ethyl acetate. The ethyl acetate layers were combined and was mixed with saturated sodium chloride to act as a drying agent, the mixture was placed in the funnel again

Introduction The purpose of the experiment was to synthesize and purify isopentyl acetate or banana oil. In order to perform this reaction, the mixture containing excess acetic acid and isopentyl alcohol was heated under reflux. The methods of extraction, drying, and distillation were then used to help purify the isopentyl acetate. After the completion of all these processes, we were able to determine the yield and analyze our isopentyl acetate. Experiment Scheme1 Equation 1. Esterification

Shake funnel and rinse off water layer ( This contains the sulfuric acid and majority of methanol). Again wash the ether with 25ml of water and then wash the organic layer with 25ml of 10% sodium bicarbonate to extract unreacted benzoic acid. Again shake separatory funnel with frequent venting of pressure and opening the stopcock. Allow the separation of layers and drain off bicarbonate

which disturbed the stability of the compounds, and led to lower melting points over a larger range. The abnormally high melting point of the base may have been observed due to improper separation of the acid and base solutions in the separation funnel. Some of the acidic compound may have entered the basic solution and reacted with the base to form a high melting point salt, making the melting point of the base appear abnormally high. The Mel-Temp was also turned on a high setting accidentally

The two solvents were added to the funnel, and the funnel was capped and the stopcock was closed to avoid spilling of solution. The funnel was then turned over several times for several minutes to let the aqueous and organic layer make contact by increasing surface area of reaction. The stopcock was periodically opened to relieve the air