After 1 hour we boiled a beaker of water on the hot plate (for Benedict’s and AgNO3 test). 5. We took all of the dialysis sacs
For the first solution, pour 5 grams of sugar into 250ml graduated cylinder and add water up to the 250ml mark. Place the plastic covering on the top of the cylinder and mix the contents. When finished, place the contents into the sauce pan. Fill up the cylinder, again, with 250ml of water and place into the same sauce pan. Heat the mixture
* Leave to cool in the pan for 10-15 minutes then turn out onto a wire rack to cool completely. * Once the cake is cooled, slice it horizontally in half. Put the bottom slice onto your serving plate. * Drizzle 1 tbsp of Frangelico over the top of the cake on the plate. * To make the fudge frosting, place the chocolate pieces and butter in a heatproof bowl over a saucepan of barely simmering water.
Add 10 ml of ph 10 buffer to the same Erienmeyer flask. Start swirling immediately to dissolve, 7. Add 15 ml of water next. Use a squeeze bottle so you can wash the inside walls of the flask. 8.
Then you put the remaining liquid (neutral component mixture) through the suction filtration funnel to isolate the crystals. After 10-15 minutes, the crystals will be dry and you can weigh them and find their melting point. How is the neutral component of your 3-compound mixture isolated from the final methylene chloride solution? 16 of 22 4/16/12 9:15 PM StudyBlue Flashcard Printing of Lab Final 2211L UGA http://www.studyblue.com/servlet/printFlashcardDeck?deckId=... Name the four active ingredients that we will be testing for in the TLC of Analgesics lab: Ibuprophen Caffeine Acetaminophen Acetylsalicylic acid What solvent system will you be using to dissolve the common analgesics (power) in preparation for TLC spotting? Methylene chloride: ethanol (1:1 solution) What solvent system will you be using to "develop" your TLC plates in the TLC of Analgesics lab?
2. Add 0.6g of zinc into the beaker. Mix the zinc with a stir rod. 3. Then, wait at least ten minutes for the zinc to settle.
Toast chile pods in the skillet for a few minutes, then remove to a bowl of water to soak for about 30 minutes. Preheat the oven to 450 degrees F (230 degrees C). Step 4. Place the tomatoes, 1 onion, jalapenos, and 4 cloves of garlic onto a baking sheet. Roast in the oven for about 20 minutes, until toasted but not burnt.
Bring the contents of the distillation flask to a gentle reflux (i.e., vapors are condensing in the first ¼ to 1/3 of the vertical condenser and dripping constantly back into the flask below). Maintain this reflux for 10 minutes, then increase the heat in order to distill the liquid into the collection flask, then the column, and even the distillation head with aluminum foil (shiny side IN). Continue distillation of the cyclohexene product until the volume in the distillation flask is reduced to about 1 mL. Ask the instructor to assist you in removing the heat source and sand bath for the almost empty flask; use Ove Gloves and/or clamps to avoid burns. |
Add another 20 mL water to the 100 mL beaker and stir for one minute. (40 mL total water in beaker) 21. Make observations. 22. Fill out Dissolve Column and Floats Column on Data Sheet.
Put on a safety goggles. Use a thermometer to measure the initial temperature of the water in the soft drink can. Measure the initial mass on a mass scale. Place the fuel under the soft drink can (If the fuel is half a cashew nut or cheetos stick it to a wine cork using a pin, then wrap the wine cork with a sheet of aluminum foil). Set the stopwatch to 1 minute.