Absorptivity of Bentonite Clay Final Project CHEM 112-501 Melissa Cisneros* Danielle Salo The purpose of this experiment was to test the absorptivity of Bentonite clay, charcoal, and another type of clay. Bentonite clay as well as charcoal can be used as a means of removing pollutants such as Polycyclic Aromatic Hydrocarbons (PAHs) from water sources. Materials and Methods: Materials used in this experiment were 600 mL beaker, 250 mL Erlenmeyer flask, 50 mL graduated cylinder, ring stand and clamp, thermometer, hot plate, tongs, pipet, spatula, centrifuge tubes, a centrifuge, cuvettes, and a spectrophotometer. Chemicals used were FeCl3 Anhydrous, FeSO4- 7H2O, Bentonite clay, 2.5 M NaOH solution, and Procion Red MX-5. To make the clay, 250 mL of distilled water was heated in a 600 mL beaker to 70° to be used as a hot water bath for the Erlenmeyer flask.
This knife, which is now generally known as Dagger with King's Name, was created by unknown artist around 1560BC. It has bronze blade, wood handle with gold and alabaster decorated on it. The blade is in a slim shape. Although the bronze has gone rusty and deformed over the thousands of years, the curve of the shape still implies how elegant it used to be. There is a vertical line across the blade so we can see the center line of it.
The word, tattoo originates from the Tahitian word tattau, which means, "to mark" and was first mentioned in explorer James Cook's records from his 1769 expedition to the South Pacific. However, some scientists believe that the earliest known evidence of tattooing dates back to markings found on the skin of the Iceman, a mummified human body that dates as far back as 3300 B.C. Tattoos have came a long way since then. People get tattoos every single day whether it’s a portrait an animal or their favorite sports teams’ logo people love tattoos. When getting a tattoo there are many things to look at and look for when choosing the right parlor.
Lindow Man Writing Task Explain what the archaeological and scientific examinations reveal about the life and death of Lindow Man. Both archaeological and scientific examinations have been incredibly useful in investigations surrounding the life and death of Lindow II, a body found in a peat bog in England in 1984. Both visual and scientific techniques as well as the historical knowledge of the Celtic festival of Beltain have helped to reveal Lindow Man’s story. A close, visual examination of Lindow Man’s body provided basic facts about his physical appearance. It was deduced through this examination that the bog body was a 25-30yr old, well-built and well groomed male with brown facial hair and a beard.
That challenged him to find a mean of transport in snow winter. In 1935, Armand assembled a vehicle that ran on caterpillar tracks. In 1937, he brought a seven-seat B7 snowmobile to the market. Armand gradually converted his garage to a manufacturing company that designed all-terrain vehicles with major success in the Muskeg tractor. In 1959, he delivered the first Ski-doo whose recreational use ensured the company’s prosperity after Armand’s death in 1964 (Canadian Encyclopedia).
and 226 A.D. The artifact is a 5-1/2-inch high clay vessel found inside of a copper cylindermade of a rolled-up copper sheet, which houses a single iron rod. At the top, the iron rod is isolated from the copper by bitumen plugs or stoppers, and both rod and cylinder fit snugly inside the opening of the jar, which bulges outward towards the middle.. Holding it together is asphalt. Within the vessel, an oxidized iron rod was located. Researchers stated that when filled with acid or alkaline liquid, an electric
Materials: In order for us to do this lab we need a few things. we got out a magnet, tongs, water, flask, funnel, Bunsen burner, evaporating dish, four 50mL beakers, filter paper, hot pads, and a spatula. 3. Procedure: 1) Got four 50mL beakers from her assigned drawer 2) Got a magnet that had a handle 3) Put the magnet in the plastic baggy that held all of the minerals 4) Picked out all of the iron fillings with the magnet, and placed them in one of the 50mL beakers 5) Got out tongs 6) Took out all of the aluminum balls and placed them in a different 50mL beaker 7) Got out a flask and a funnel 8) Got a piece of filter paper and placed it into the funnel 8) Placed the funnel into the flask and then connected a hose to the flask and the faucet 9) Put water into the bag of sand and salt then poured it into the filter 10) Turned the faucet on and it started to drain while the salt was dissolving into it 11) Once it was done she scrapped the sand into the third 50mL 12) Got out a Bunsen burner and attached an evaporating dish above it on an iron ring 13) Poured the water into the evaporating dish 14) Waited until the water evaporated and only salt was left in the dish 15) Poured the salt out into the final 50mL beaker 16) Weighed all of them and found the mass.
We then began to heat and stir the solution until it changed color again and it turned black with a layer of water on top. This was the Cu(OH)2 decomposing into CuO and
This is known as the profile. The third step is to mold the profile utilizing a graver, a metal scratching tool called a “bulino” “(Which implies graver in Italian)” (Staples 2). A “bullion is one of four gravers” (Staples 2) customarily utilized for making cameos. The others are confronted, adjusted and three-cornered. Throughout this stage the top layer of shell is evacuated.
Hydrogenated vegetable oils and other waxes are also used. A typical flame is that of a burning candle. When the candle is lighted, the heat of the match melts the wax, which is carried up the wick and then vaporized by the heat. The vaporized wax is then broken down by the heat and,