Cathode

Abstract For this experiment the amount of zinc in vitamin water had to be determined. To do this, three methods were applied. The first was by a calibration plot method, where zinc standards were prepared and from the absorbance of those standards a calibration curve was plotted, which in turn was used to determine the amount of zinc in vitamin water. The second method was standard addition. For this method, an un-spiked and spiked solution were prepared. The un-spiked solution only contained…

The atomic theory was proposed by a chemist named John Dalton, but it was first discovered by a Greek philosopher named Democritus in 400 BCE. Democritus stated that matter was made of small hard particles called atomos. John Dalton’s theory can be called modern because it can be proven through experiments. John Dalton pointed out some major details about the atomic theory; All matter is composed of very small particles called atoms, atoms of a given element are identical, atoms can’t be…

game, a table tennis like game, was played on an oscilloscope”( Kudler). It was made in 1958, which was played through an oscilloscope which is a device for viewing oscillations , as of electrical voltage or current, by a display on the screen of cathode ray tube. The history of games goes way back, people typically think of Pac-Man, Pong, And the first game is Tennis for Two. Video Games are a big part of everyday life in the world now days. There a millions and millions of people who play…

double or triple melted to produce sound ingot. Like few tens to a few hundreds of briquettes – depending on the ingot size. The VAR process ingot production flow is shown in this flow chart. The primary electrode of titanium is connected to the cathode of the furnace. It is melted by the direct current arc produced between the water cooled copper crucible (which is connected to the anode of the furnace) and primary electrode (which is connected to the anode of the furnace). Molten titanium…

supporting matrix which was made of one percent agarose gel. GelRed, a nucleic acid dye, was added to help visually identify the DNA bands. A power supply was added to the gel for 20 minute by placing an anode (positive poled) at the bottom and a cathode (negative poled) at the top. PCR clean-up was tested using the same electrophoresis method as the DNA extraction. PCR A portion of DNA from the extraction was amplified using polymerase chain reaction (PCR). A new sterile tube was used. In…

In designing our science fair project, many concepts and variables are to be considered. Our science fair project is experimenting on how rust forms so research and prior knowledge is required before we actually conduct the experiment. Having previous information on the topic allows us to be able to alter the variables accurately when we actually administer the procedure. For our project, we are exploring the idea of the formation of rust and how the lack of or extra variables could affect the…

chemistry and physics, substance that conducts electric current as a result of a dissociation into positively and negatively charged particles calledions, which migrate toward and ordinarily are discharged at the negative and positive terminals (cathode and anode) of an electric circuit, respectively.”Electrolyte. (2015). In Encyclopædia Britannica. Most electrolytes are acids, salts, and bases and they ionize…

Maple Syrup Urine Disease Hannah Gentry , 13SK , 8/21/2014 Maple syrup urine disease (MSUD) is a rare genetic disorder where an aminoacidopathy secondary to an enzyme defect in the catabolic pathway of the branched-chain alpha-keto acid dehydrogenase complex, which are required in order to metabolize certain amino acids in the human body. In other words, it is a metabolism disorder, where the infant is unable to break down the amino acids: leucine, isoleucine, and valine. Build up of these…

“Let the future tell the truth and evaluate each one according to his work and accomplishments. The present is theirs; the future, for which I really worked, is mine”- Nikola Tesla Nikola Tesla was born on July 10th 1856, in what is now Croatia. His father was an Orthodox priest. His mother, had a knack for home craft tools and machinery. Tesla was the fourth of five children. He was such a genius that he could do integral calculus in his head and graduated with a four-year term in three years,…

is significant because it changed the way we look at treatment. In 1895, radiation had just been discovered by Wilhelm Conrad Roentgen, a professor at Wuerzburg University in Germany. ("History of Radiography"). It was discovered by working with a cathode-ray tube in his laboratory where he discovered a fluorescent…