flush any skin and eyes for 20min in water. Isopropyl Alcohol- highly flammable liquid, water miscible. Isolate area for at least 100 meters. Use alcohol resistant foam to extinguish any fire and eliminate any ignition sources for a spill. first aide- move victim to fresh air, administer o2, remove all contaminated clothing, if in contact with eyes flush for 20min and wash the skin with soap and water.
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.
Wait for the bubbling to subside between additions so that the reaction does not overflow the flask. 6. When all the acetic acid has been added, swirl flask or stir for two minutes with a glass stirring rod. 7. When the solution is completely calm, move the flask to a hot plate and heat it to boiling.
Care must be taken when squeezing the pipet bulb on the filter pipet. Too much pressure might cause the filter to leak or fall off. Add about 2 mL of fresh tert-butyl methyl ether to the solid in the RB flask, warm briefly, let the solids settle for a minute, and pipet the liquid to the centrifuge tube as before. Again allow the solids to settle briefly in the centrifuge tube, then filter the liquid through the pressure filtration apparatus, into the same 25 mL Erlenmeyer flask. Doing a rinse such as this helps to ensure that any trimyristin that was left behind in the RB flask and centrifuge tube is not lost, thereby helping to ensure that
Some might think that by squeezing the bottle, Mr. Squiddy would go up with the water however, he would go down due to the pipette being used. The pipette had a little air bubble at the top of it, when the bottle was squeezed the water filled into the pipette creating an increase in pressure and a subsequently decrease in volume causing Mr. Squiddy to sink. When released, the high pressure subsided and he floated back up. In the crushing cans demo the cans were heated up with a little water inside and set to boil until steam appeared. Once the can was hot enough it was quickly placed in a bowl of ice cold water and the can crushed itself.
Slowly add the water mixed with oil and stir over medium heat until mixture thickens to dough. Let cool a few minutes and then knead until smooth. Kool-Aid Play dough with Alum (Nonedible) Alum is a pickling spice found in the spice section of your grocery store. It makes the play dough last longer. • 2, 1/2 cups flour • ½ cup salt • 1 Tbsp Alum • 1 package unsweetened Kool-Aid (6 g Pkg.)
Andre’ Dorsey Mrs. B Lab section: Alka-seltzer Experiment In this experiment we wanted to see what would dissolve the Alka-Seltzer the quickest using these three beverages: orange juice, milk, and water. Alka-Seltzer is a pain reliever for minor aches, pains, fever, headache, heartburn, indigestion, and hangovers. What I think about the experiment is that the orange juice would dissolve the Alka-Seltzer the fastest out of the three beverages because it is a acid. The materials used for this is experiment were: beaker a constant, Alka-Seltzer a dependent variable, stop watch a constant, 100ml of water a dependent variable and also a controlled group, orange juice independent variable, and milk independent variable. Procedures for
(U.S. EPA, 2005,para 12) The reason for using these disinfectants in the water systems like chlorine and chloramine is because they are effective and inexpensive and as it travels through the pipes it continues to disinfect traveling to the homes and businesses. (Flouride, 2012, para4).Now knowing this fact is the reason why the tap water has a distinguish taste to it and after a while traveling through the pipelines the lines tends to get rusty and gets into the homes and businesses and that is bad for the health. (Water and Health series, Bottled water basics, 2005,para,
It still contains nicotine and holds other dangerous chemicals, including 28 carcinogens (Mayo). An individual who chooses smokeless tobacco has to face the consequences that go with it. That person increases their chance of acquiring tooth decay, oral cancer, and heart disease ("Smokeless"). There is another constituent in chewing tobacco other than nicotine: sugar. When any product containing high quantities of sugar that is taken through mouth, there is always a risk of tooth decay.