Chem Lab Essay

In the lab we filled the first beaker up with water. Then we took a pipet (filled with the liquid) and dropped water droplets onto the

After added, pick up the beaker and swirl it around lightly for a short period of time.

8. Repeat step 7 with H2SO4, except that you should use a 10 mL graduated cylinder of H2SO4 and adding 15 mL water.

Fill a test tube about 1/3 full with cold tap water for use in step 34.

1) Separate the solid from the liquid in the beaker by decanting the liquid. Ask your instructor to demonstrate the correct procedure.

8. Crush crystals into powder with a stirring rod and use a melting point device to determine the melting point of your active ingredient.

3) Let the tip set for a minute, so that the liquid can saturate the internal

The mixture was cooled to room temperature and 40mL of of water was added. The stopper was placed on the flask and shaken until the liquid residue solidified. After the product solidified, the flask was placed in an ice bath and the solid was was broken up with a string rod until it was a fine powder. The product was then collected by vacuum filtration and was washed three time with 5-mL of cold water then left to dry.

Before I started, I added a filter paper into the apparatus and put the funnel in the filter flask strong enough so that the neck fits into the rubber washer. Then, I poured water into the top to moisten the filter paper and used the _____________ to get all the water to bottom before pouring in the aspirin product into the filter paper. I slowly pumped the water into the bottom until one crystals were left and used the spatula to transfer any crystals left in the flask. With the ice cold water again, I rinsed the inside of the flask and transferred the remaining crystals into the funnel. Then, I added two 10 mL portions of cold water and pumped all the water to the bottom. Last, I took out the filter paper with the aspirin by using a spatula and put them on a paper towel to allow them to air dry over the

You might have to heat the test tube while you are adding the water to keep the solution hot. 4. After getting the solid to dissolve, allow the solution to cool slowly and look for crystals. After the solution has cooled to close to room temperature, cool it in an ice bath. Collect the solid using vacuum filtration and your Hirsh

Be ready to start the timer when the 6 mL S.B is poured in the 350mL beaker containing S.A. Stop the timer when the color blue start to appear in the solution inside the 350 mL beaker. Rinse and dry the 350 mL beaker that contained the solution. Set the dry 350 mL beaker aside Pour 10 mL of S.A in one of the two granulated cylinders.

Wash down any NaCl and K2CrO4 on the sides of the conical flask with some deionised, to get all the added solutions into the middle.

7. Using the second Popsicle stick, scrape the sand from the evaporating dish onto paper towel 4 and then pour only the water from the 20 ml beaker into the second 15 ml beaker and put the sand left in the 20 ml beaker onto paper towel

Allow this is sit for up to 3 weeks and you will see crystals form!

Swirl the conical flask to mix the contents and place it in an ice-water bath.