Now right-click on the flask, and select Heating Mantel from Distillation Equipment then, Right-click on the flask, and select Distillation Head from Distillation Equipment last, Right-click on the flask, and select Condenser from Distillation Equipment. Now, right-click on the flask, and select Distillation Take-off from Distillation Equipment. From the Equipment menu, select the 100 mL Graduated Cylinder. Place it under the end of the distillation take-off. The graduated cylinder will collect the distillate.
Materials: 250mL Beaker Test Tube Calorimeter Burner, Ring Stand, and Wire Gauze Thermometer Balance Procedure: 1. Prepare an appropriate data table. 2. Fill the 250mL beaker about half full. Place it on the stand and begin heating it to the boiling point (100 degrees Celsius).
4. Any hanging drop was removed from the jet, and the sodium hydroxide was then drawn up using the pipette, to above the graduation mark and allowed to run into the sink. This process was the rinsing of the pipette. 5. Sodium hydroxide was again drawn up using the pipette, to above the graduation mark, where the meniscus was allowed to fall until the bottom of it was rested on the graduation mark when viewed at eye level.
Fill a 10 mL graduated cylinder with ≈ 7mL if water c. Fill a 1000 mL beaker with ≈ 750 mL of water d. Invert the graduated cylinder into the beaker. Add water to the beaker to completely submerge cylinder. e. Measure the difference between the height of the water in the graduated cylinder and the height of the water in the beaker. f. g. Record the barometric pressure in mmHg. Heat the water via Bunsen burner to 80°C.
The mass was recorded and transferred to a 50 ml beaker. 4 ml of 6 M HNO3 was added to the beaker containing the copper. For step 2, 10 ml of distilled water was added to the beaker. Then, 6 M NaOH was added to the solution (drop wise), until placing a drop of the solution on red litmus paper turned it blue. For step 3, the solution was heated with a hot plate.
Using a measuring cylinder, pour 20 cm3 of 0.01M saturated cobalt (II) chloride solution at 0℃ and pour about 100 cm3 of deionized water to a 250 cm3 beaker. 2. Stir the mixture using a magnetic stirrer-hotplate. 3. Using a dropper, add 5 drops of concentrated hydrochloric acid to the solution.
-Insert the rubber-stopper assembly into a 125 mL Erlenmeyer flask. Important: Twist the stopper into the neck of the flask to ensure a tight fit. Close the 2-way valve above the rubber stopper—do this by turning the valve handle so it is perpendicular with the valve stem itself (as shown in Figure 3). The air sample to be studied is now confined in the flask. -On the Meter screen, tap Mode.
Method: I put the cylinder on the electronic balance (EB), and recorded the mass in the table shown below. I took the cylinder out of EB. I poured oil into the cylinder to 50ml, and I poured water into another cylinder to 50ml. Then I put the cylinder with oil on the EB and recorded the mass in the table. I repeated this procedure with the cylinder with water, and recorded the data.
The extraction process is when a solvent, dichloromethane (15mL) is added to the filtrate in a separatory funnel; the mixture is gently swirled together 3 times, and stopcock is released in between to vent the funnel. Dichloromethane (including the emulsion) is then drained from the bottom into a 50mL Erlenmeyer flask. Same extraction process is repeated on the same filtrate and the dichloromethane is, once again, let out to the same 50mL Erlenmeyer flask as before. The combined dichloromethane solution and water (20mL) is poured into a rinsed separatory funnel. Mixture is gently swirled and drained out into an Erlenmeyer flask.
Materials and Methods A 50 mL beaker was placed on a hot plate surrounded by an iron ring clamped to the ring stand. Then, a fume hood was formed on top of the beaker by clamping a funnel and attaching a hose from the funnel to the aspirator. The water was turned on while 0.2549 g of copper turnings was weighted. The copper was added to the beaker along with 4 mL of 6 M HNO3 and heated gently. 10 mL of distilled water were added to the beaker along with 110 drops of 6 M NaOH.