Brew together beverages (excluding: Water, Caffeinated Water: Water Joe, Energy Drink: Red Bull)
Use a separatory funnel to close the stopcock.
Set up a ring stand in order to support the separatory funnel and place 100ml of beverage into the separatory funnel.
Add 25 ml of the solvent: dichloromethane and place the stopper to close off the top of the separatory funnel.
After closing, shake the funnel for 1-2 minutes.
Put back the funnel in the ring stand so the two layers of liquid could separate (this should take a few minutes, but if an emulsion occurs, use the glass stirring rod to break up the emulsion.)
Remove the stopper once the two layers have more or less separated and transfer the lower dichloromethane layer into another clean and
The Separation Challenge is an experiment involving the use of background knowledge of mixtures, properties of matter, and creativity in order to find a solution to separate three different substances layered on top of each other within a container. The experiment required a matter of coming up with a solid and thought out procedure to successfully separate the three substances individually within an amount of time using various lab materials and technology accessible at the time.
Start with the hot water and first measure the temperature. Record it. 8. Then pour 40 ml into the beaker. You can measure how much water was used by looking at the meniscus.
Each subsequent trial will use one gram more. 2.Put baking soda into reaction vessel. 3.Measure 40 mL vinegar. 4.Completely fill 1000 mL graduated cylinder with water.
Once the mixture had been completely dissolved, the solution was transferred to a separatory funnel. The solution was then extracted twice using 5.0 mL of 1 M
2. Drop a gummy bear into each of your prepared beaker or cup and place the beaker or cup
After the rinses, close the stopcock and fill the buret up to the 0.00mL line with NaOH. Quickly, open the stopcock to fill the tip of the buret and then close the stopcock. Record the initial volume of the NaOH to the nearest 0.01mL.
· Rinse out mixture in flask and leave water running to get rid of the
10. Point the flask away from everyone and open the two-way valve in order to release pressure from the flask. Remove the stopper assembly, then fill up the flask with water. Discard of the solution in the sink.
in 5cm³ of water and add 4cm³ of ethanol. We had tom pour this mixture
4. Pour about 300mL of tap water into the beaker. Set up a hot-water bath using a hot plate, retort stand, and thermometer clamp. Alternatively, use a Bunsen burner, retort stand, ring clamp, thermometer clamp, and wire gauze.
of distilled water. For the 1M solution I added 50 cm3 of HCl and 50
Remove the metal object from the first beaker and insert it into the second one.
Begin collecting samples with the pure hexane. Keep adding hexane so that the silica gel column does not run dry. Collect one 20 ml sample. Repeat with 90:10 hexane and collect 4 20-mL bottles. Repeat with 80:20 hexane and collect 2 20-mL samples.
3rd create wells: put a comb template in middle of the tray; wait until the mixture becomes solid. After,
For simple distillation, I added 4 mL of a 10-20% ethanol-water mixture to a 5 mL round-bottomed long-necked flask. I joined the flask to a distilling head fitted with a thermometer through...