Erlenmeyer flask

funnel. 3. Open the stopcock on the separatory funnel and draw off the lower aqueous portion of the liquid into a 125 ml Erlenmeyer flask. 4. Since some of the aqueous solution is still dissolved in the ethyl ether, add an additional 20 ml portion of 5% NaHCO3 and repeat the extraction procedure. Combine this second aqueous portion with the first 5. Place the 125 ml flask into a warm water bath (60 C) and gently heat. This will evaporate any ether still present in the aqueous portion. Do not…

250ml Erlenmeyer flasks, pipettes, side-arm flask, hot plate, water bath…

Procedure: To begin this experiment all of the equipment was collected. The materials used in this experiment were a small plastic weighing dish, oxalic acid, a 250 mL Erlenmeyer flask, distilled water, a buret, NaOH solution, a 150 mL beaker, funnel, and phenolphthalein indicator. Before the experiment began the buret was cleaned with distilled water, a buret brush, and dish soap. The buret was completely washed out in order to not cause any faults in the results of the experiment. Once the…

Brandon Ugbesia 9/24/2015 Steps and Procedures 1. Blend a 120 g sample of each fruit separately a in a blender with about 50 mL of distilled water. Strain any extra pulp with a cheesecloth. You should have at least around 120 ml of substance. 2. Separate each of the liquids into half and put each half into its own separate individual…

according to (method 8202). - First, we set up the titration apparatus, by setting up the Ring stand with universal clamp, we placed the magnetic stirrer on the ring stand and plugged in, followed by placing the magnetic stir bar into the Erlenmeyer flask. - We sidled the sodium Hydroxide titration cartridge (1.600 ± 0.008 N) into the HACH digital titrator and slightly turned to lock the cartridge, followed by recapping the titration cartridge and inserting the delivery tube (G tube) into…

hexane to ethyl acetate was used to elute the β-carotene and was collected in a pre-weighted Erlenmeyer flask. Next, a 1:1 polar mixture of hexane and ethyl acetate was added to elute the chlorophyll which was also collected in a pre-weighted Erlenmeyer flask. The products were then evaporated with a hot air gun and left overnight to evaporate completely. When the solvent was fully evaporated, the flasks were weighted and calculations of mass and yield were…

culture grown onto nutrient agar was inoculated into a 250 ml Erlenmeyer flask containing 25 ml trypticase soy broth, incubated at 250 rpm and 30°C for 15-16 h. After that, the culture obtained was centrifuged at 10,000…

Brandon Ugbesia 9/24/2015 Steps and Procedures 1. Blend a 120 g sample of each fruit separately a in a blender with about 50 mL of distilled water. Strain any extra pulp with a cheesecloth. You should have at least around 120 ml of substance. 2. Separate each of the liquids into half and put each half into its own separate individual…

beaker on a hot plate and begin heating. 2. Clean and completely dry the Erlenmeyer flask. 3. Cut a square of aluminum foil to serve as the cover of the flask. Trim the edges so that it neatly covers the edge of the flask. 4. Weigh the empty flask with cover and record to as many sigfigs as possible. 5. Obtain your unknown liquid and record the ID #. Add 3-4 mL of the liquid to the flask. Re-cover the flask, making sure the edges are tightly crimped. 6. Punch a tiny hole in…

For the first synthesis reaction, camphene was converted to isobornyl acetate. In the fume hood, a sample of 1.36 g of camphene was added to a 25-mL round-bottomed flask along with a stir bar. To dissolve the camphene, 3.0 mL of glacial acetic acid was added into the flask. The flask was fastened onto a ring stand and immersed in a water bath that was on top of a stir plate. A thermometer wire was placed in the water bath to monitor the temperature throughout the experiment. After the camphene…