If contact was liquefied gas thaw the frozen parts with lukewarm water. If it was a burn cool infected area with cold water but do not remove clothing adhering to the skin. 1005- Ammonia; toxic and corrosive gas. Isolate any spill at least 100 meters in all directions. first aide move victim to fresh air, administer o2, DO NOT use
Do this before it cools or water will travel backwards into your tube and contaminate your solid product. I 1 Collecting a liquid product: If you loosely wrap a damp paper towel around the upper-outer section of the boiling tube away from the flame, you might be able to condense a gaseous produCt into its liquid ·state. In addition to this you should cut a large piece of qualitative filter paper in half and then fold it and theri curl it inside the boiling tube near the rubber stopper. If a liquid forms, the finer paper will help absorb it and prevent it from falling back onto the solid being heated. Make sure the rubber stopper is securely in place since gas can easily leak out.
Using the utility clamp, clamp the thermometer, attach the paper lid to the probe then move the probe close to the bottom but not touching the magnetic stirrer. Start the Logger Pro program on the computer. Open the file “13 Enthalpy” from the Advanced Chemistry with Vernier folder. Measure 50.0 mL of 2.0 M Hydrochloric acid, HCl, solution and pour into the styrofoam cup, make sure that the temperature probe is touching the solution. Measure 50.0 mL of 2.0 M Sodium Hydroxide, NaOH, solution but DO NOT ADD YET.
Describe the three general safety rules for working with a Bunsen burner. Tie back any long hair or dangling jewelry. Place Bunsen burner at least 12 inches away, and don’t leave flames unattended. 2. The following data were obtained when a sample of barium chloride hydrate was analyzed as described in the Procedure section.
After all the acid has been completely added and the reaction has stopped, use a pipette to add a few extra drops of acid into the beaker until the reaction stops. 7. Place the beaker on a hot plate and heat on a high setting to boil off the water. WARNING: THERE WILL BE A SMALL AMOUNT OF HYDROCHLORIC ACID BOILING OF THE MIXTURE. DO NOT PLACE YOUR FACE DIRECTLY ABOVE THE BEAKER.
(See Figure 1. )This is where the needle will come in and out from, and while tattooing ink is stored in this area. The smaller the hole opening the better, so ink will stay inside the tip, and not flow out. Take the very tip and wash with hot soapy water, making sure all of the ink is out and completely clean. Then set tip in a cup and boil in microwave to kill all bacteria.
Allow the splint to burn until the color fades. Don’t let any solids to fall into the burner. -Soak the wooden splint in the “rinse water” to put it out completely; move it to trash. -Record observations on flame color produced by the metallic salt in the Data Table. -Repeat above steps (middle section) for all metallic salts (five total).
Identify the processes (e.g., coagulation) that were used in this lab and describe how they were performed. You start out with the contaminated water that has not been filtered out or has not had any chemicals added to it, this is many done so air can meet the water and this gives the chemicals and gases to release. I then added Alum to the dirty water since when mixing Alum with the dirty water it allows all the big particles to “stick” to the Alum and then pushes all of these particles to the bottom of the water. The dirty water is then put through a filter of sand, charcoal, and gravel in order for any of the smaller particles to stick to them and makes the water clean and free of any other particle. After I did all this I then had to add a few drops of bleach so I could disinfect the water from any other dirt
Atomic Admission Aim: To Identify the unknown element by observing its colors and wavelengths. Hypothesis: The unknown metal salts can be identified Safety Assessment: 1. Wear safety goggles to protect your eyes from the chemicals 2. Wear lab coat to protect your skin from the chemicals 3. Do not sniff, taste, or touch the chemicals 4.
Pour of most of the liquid making sure not to pour away any of the solid at the bottom of the container. Add about 10 mL of water, swirl the solution, and again pour off most of the liquid. Record your observations. 15. Clean up your area and return equipment.