The student should go to the safety shower and stand under the activated shower for 15-30 minutes. 5. Acid is spilled onto the workspace. Explain the procedure that should be followed. (5 pts.)
-Get six wooden splints that have been soaked in water. -Place them in the beaker half filled with water to continue soaking at your lab station. -Fill a second 250-mL beaker about half-full with tap water. Label this beaker “rinse water.” -Light the Bunsen burner. -Take one of the wooden splints and dip the soaked end in one of the metallic salts,
6 grams of dried seaweed, cut into ½ inches should be places into a 150 mL beakers that will later be filled with ¾ distilled or deionized water. Then, the seaweed should be agitated with a stirring rod to remove monosodium glutamate. 2. After the water is poured off in the sink, 40 mL of distilled water should be added to the seaweed, and should be heated for 5 minutes with a Bunsen burner. 3.
5mL of acidified water will be measured, using a graduated cylinder, and will be transferred to the R tube, and will be immediately vigrously mixed with the reactants. Once the solution turns to an orange or red-brown color, a pipet will be used to quickly remove 30 drops of the solution, then transferred to the C tube, and the mixing will resume until the solution is close to room temperature. The solution will be filtered into the P tube, and the solution that is left in the R tube should be washed three times with 1mL of acidified water each time. The water should then be poured into the P tube, leaving the solid in the R tube. Using a test tube holder, heat the R tube over the Bunsen burner, moving the tube in a circular motion until all the water has evaporated.
Then 5mL of HCl was added to copper to completely remove all traces of zinc. Once the bubbling had stopped, the rest of the liquid was decanted away from the copper. Then the copper recovery set up was put together using tubing, Buchner funnel, filter paper and suction flask. Then the filter paper was weighed before placing it in the funnel and wetted down. The aspirator was turned to medium high, and then the copper was poured onto wetted filter paper.
Allow the mixture to cool for a few minutes then filter it, using either gravity or vacuum filtration. (We shall be using vacuum filtration.) Wash the residue in the funnel once with a little water and collect all the filtrate. 4. Pour all the filtrate and washings into a 250cm3 volumetric flask.
I will weigh this and put it in a separate cup. I will now set up a filtration system. I will make sure everything is off the sides and pour the content into the funnel. I will measure out 5ml of water into the cylinder and then pour this in. After this I will pour the liquid in a
After donning the appropriate safety gear I began by placing 3 separate sets of 10 drops of distilled water into an unused well of the 24 well plate. I added the following chemicals into one of the three sets of distilled water creating three separate chemical mixtures: HCI, Ammonia, and Sodium Hydroxide. I mixed all thoroughly with a toothpick and then sucked the mixtures into separate pipets. These were placed into the 24 well plate for later use. Using the 96 well plate I combined various chemicals together to observe the chemical changes that were created.
Obtain 6 clean/dry test tubes and arrange in your test tube rack. Label the test tubes 1,2,3,4,5,&6 6a. Test tube 1: Add 5 drops of Barium nitrate solution. Test 2: Add 3 drops of Sodium chromate solution. Combine test tubes 1 and 2 into one test tube (pour test tube into test tube 1).
The contaminated one is a dark brown and it smells like potting soil and dirt. All of the potting soil has moved to the top of the water in the beaker. 3. From the introduction to this lab, you know that there are typically five steps involved in the water treatment process. Identify the processes (e.g., coagulation) that were used in this lab and describe how they were performed.