Essay On Trimyristin

Procedure: I used a ruler, thermometer, and scale to take measurements. I used a graduated cylinder, short step pipet, scale, and ruler to determine volume and density. I used a volumetric flask, graduated pipet, pipet bulb, scale, and glass beaker to determine concentrations and densities of various dilutions.

Next, I poured distilled water just below the 250ml mark on the neck of the volumetric flask.

The solid product was then collected from the funnel and added to a hot 95% ethanol solution in an Erlenmeyer flask and completely dissolved. Once the solid was dissolved completely, the solution was allowed to cool to room temperature. Once yellow crystals formed, the solution was placed into

Copied the observations table in our notebook. Then recorded the mass of the beaker using the balance and wrote down the measured mass in the observation

Sand – it did not dissolve into the water, and was heavy enough to stay at the bottom while the benzoic acid floated to the top during the heating process. It was composed of many different colors and sized rocks, each one unique. But when you looked at them all together, they blended into a beige mound.

Obtain the mass of two dry and empty 125mL or 250mL Erlenmeyer flasks on a milligram balance and then number it. Record the mass in your data table.

1. First, 3.0015 g of salicylic acid were measured using an electronic balance. 2. The salicylic acid was then transferred into a 150 mL beaker.

The lime water turned into white opaque color, and gas bubbles and white precipitate was formed, as placed the open end of the gas delivery tube(reaction between Alka Seltzer tablet + water) into the limewater.

XII. Take the 250 ml beaker to your lab bench. Set up a gravity filtration with a plastic funnel, folded wet filter paper, and an Erlenmeyer flask. Pour the content in the 250 ml beaker slowly through the filter paper. Wash the filter paper with deionized water. Dispose of the filtrate in the proper labeled waste container.

This was accomplished using a reflux apparatus and methylene chloride. The nutmeg and methylene chloride were heated to dissolve the nutmeg, and to create a solution. Using a Hirsch funnel, any remaining solid pieces were filtered out of the methylene chloride and nutmeg solution. A rotary evaporator was used with 95% ethanol to secure a good recrystallization of the pure trimyristin. The precipitate was formed through heating the substance and then placing it in an ice bath.

To measure the weight of the precipitate, right click the test tube. Select show weight. The weight of the precipitate will appear below the test tube. Record this information in the Observations and Results section of the lab report, including the weight and appearance of the precipitate.

The mixture was heated in a 80 degree Celsius water bath with swirling until the solid dissolved. After the solid was dissolved, 10mmol (.80 mL) of iodoethane was added using a automatic pipet. The mouth of the flask was sealed with a parafilm. After the flask was covered, it was heated in the water bath with occasional swirling for 10 minutes at a temperature of 80 degrees celsius.

From that, we filtered 2,015 mg of methylene chloride and very crude trimyristin solution. We needed to discard more of the solvent so that we would be left with just the crude product so we evaporated it. Once we evaporated the methylene chloride, we were left with 104 mg of crude product. We added in minimal amounts of ethanol and heated it so that the trimyristin would dissolve into the ethanol along with any other remaining impurities. As we cooled the product, the trimyristin settled out as it returned to its solid state and the remaining impurities stayed dissolved in the ethanol. We vacuumed out the excess ethanol solution. We vacuumed out the remaining excess ethanol and dissolved impurities. We had 37mg of pure trimyristin remaining. We found the melting point of the trimyristin and discovered that it was between 51.5°C-52.2°C. This melting point was slightly less than the pure trimyristin standard melting point that we were given which likely resulted from minimal impurities remaining in the final product. We were pressed for time when cooling it in the ice bath so we had to shorten the procedure from ten minutes to

Measure the weight of the of the flask with the chips on the balance scale and record it down.

An alcohol bath was prepared with an ethanol solution and dry ice, the solution was measured using a thermometer, at approximately -15˚ the bath was placed under a Polaroid filter and above a stable jar upon a white piece of paper. The capillary level holder with the frozen capillary tubes was placed carefully into the bath (at an angle to reduce effervescence). A lamp was placed 20 cm away from the setup and shone on the Polaroid filter. This setup ensured the ethanol solution didn’t heat up too rapidly.