Chemist

different types of trauma, chronic pain, respiratory illnesses including tuberculosis and chronic pain associated with cancer. In the late 19th century doctors and pharmacists became increasingly aware of morphine 's addictive properties, and in 1874 chemist Alder Wright began synthesizing morphine in his lab at a London hospital.…

The main advantages of the NEMI symbol assessment method are the simplicity of the assessment and reading the score, one fast look at the pictogram will be enough to have a general information about the environmental impact of a procedure. However, the drawbacks of this method are non-consideration of the amount of chemicals used in the analysis and the waste generated (qualitative rather than quantitative analysis) and the obtained information is general. In addition, the search of each…

James Marsh was the first to apply this new science to the art of forensics. He was called by the prosecution in a murder trial to give evidence as a chemist in 1832. The defendant, John Bodle, was accused of poisoning his grandfather with arsenic-laced coffee. Marsh performed the standard test by mixing a suspected sample with hydrogen sulfide and hydrochloric acid. While he was able to detect arsenic…

Fodere, French doctor. A way to detect arsenic oxide or arsenic in the bodies, though only if it is in large quantities, was found by Carl Wilhelm Scheele, Swedish chemist, in 1776. His investigation developed in 1806, when German chemist Valentin Ross succeed to detect poison in the walls of the stomach of the victim and the English chemist James Marsh, who used chemical process to determine that arsenic was the cause of death in a murder trial in 1836. (McCrery,…

World War II was fought from 1939-1945. Those of the Jewish faith were treated poorly with Zyklon B helping kill them, which did involved many others with WWII. Zyklon B played a role that killed millions of jews and many others which created a mass destruction called the Holocaust. Zyklon B is a pesticide that is in the form of small blue tablets. This pesticide was used for disinfecting ships, barracks, clothing, warehouses, factories, granaries, and many more. Zyklon B was used for…

augmentation is silicon implants. That being said I wanted to learn more about silicon and what people are putting in their bodies. Silicon is an element a pure substance that can’t be broken down. Silicon was first discovered in 1824 by a Swedish chemist named Jons Jacob Berzelius. This element is the second most abundant and it makes up about 27.7% of the earth’s crust. Although silicon is the second most abundant element, and it can’t be found free in nature. Silicon is usually found as…

1. Introduction Technology became a great role in improving science teaching, as students faces a lot of hazards and accidents in the laboratory while performing experiments in physical and chemical labs, which are frequently the consequence of carelessness or ignorance whichever by student or by the supervisors. 1.1. Overview Virtual laboratory is developed and designed to help students use chemical tools through desktop application. The virtual laboratory is an interactive environment for…

to be either acid, neutral, alkaline, or basic.The reason why solutions are different, as in being acid, basic, neutral, or alkaline, is due to the hydrogen ions activity in the solution. (Senese, 2010) One example of trace evidence that forensic chemist use pH to test is soil. This is because soils have different pH levels, and when they can get a soil sample they can test its pH. Testing soil can be done by performing a pH test, and a pH test consist of putting a small amount of soil in…

(Kitty) Hach-Darrow was a chemist, entrepreneur and philanthropist born on October 20, 1922. She grew up during the great depression. She lived on a farm with her family due, which would later help her afford to go to college. She attended Christian college (currently known as Columbia) for a brief time, and later she transferred to Iowa State with the purpose of becoming a home-economics teacher. During her time in college she was often inspired by Nellie Taylor, who was a chemist that worked…

Typically, it is called “flarp” or just simply silly putty. It is sold in the toy section of the store. Slime usually has an unpleasant smell, but as said earlier, chemists add fragrances to make it smell better. It is normally, cold to the touch. Slime is usually sold in a variety of colors including: red, blue, green, pink and yellow. In fact, if you make your own slime at home you may add any color you would like…