Analytical chemistry

Benzimidazole and its derivatives were synthesized according to the reported literature (Wagner EC et al., 1943). The compounds are benzimidazole ;1-(4-((1H-benzimidazol-1-yl) methylamino) phenyl) ethanone; 2-butyl-1H-benzimidazole; 2-methyl-1H-benzimidazole. The stock solutions are prepared by dissolving the compound in DMSO. Antimicrobial activity was tested by the disc-diffusion method under standard conditions using Mueller-Hinton Agar (MHA) and the antibiotics used as listed below, Table…

We are testing different watt light bulbs and how it affects how fast the chads rise. We are using 300, 200, 100 and 60 watt lights bulbs. We are timing how long it takes for the chads to rise with each different light. Photosynthesis is a chemical process through which plants, some bacteria and algae, produce glucose and oxygen from carbon dioxide and water, using only light as a source of energy. Photosynthesis converts massive amount of Sunlight into electrical and then chemical energy. The…

This paper is illustrating the point that Chromium is both beneficial and baneful. Chromium can be very harmful to the environment and the organisms that inhabit it. Alongside the afflictions Chromium can have on the surrounding environments, the element has many assets that benefit the health of said denizens. As synthesized from minerals found in nature, Chromium was introduced and discovered in 1798, it is used for hardening steel, to prevent corrosion alongside various medical uses, and also…

In this investigation, electrolyte content will be measured and compared to the sugar content to give a measurement of how drinks compare in terms of benefit during exercise. The independent variable will be the drink being tested, and the dependent variable will be the electrolyte and sugar content of that drink. Electrolytes are positively or negatively charged ions that are essential for survival. Positively charged electrolytes move towards a cathode, while negatively charged electrolytes…

The unknown compound was composed of small, white crystals as shown in picture 1. The compound was completely odorless, which was tested by simply smelling the compound. Picture 1 (Unknown Compound): The solubility test of the unknown compound determined that the compound was soluble in water (H2O). The other known salts that were tested that were also soluble were all of the sulfates and NaCl. These were the only salts tested, because before this experiment it was determined by the flame test…

Now for all this history there are certainly important leaders of chemistry that need to be given some credit. First there is Jābir ibn Hayyān who is also known as Gerber. He was a chemist from the eighth century AD. Geber became one of the first people to use scientific methods to study and experiment. Through his experiments and studies he is thought to have discovered hydrochloric acid, sulphuric acid, and nitric acid. He also discovered what is now called Aqua Regia, which is an acid that is…

Lead concentrations can be measured in various body tissues or by measuring the biomarkers of the toxic effects of lead. The concentration of lead in the body has been measured in blood, bone, nails, hair, teeth, urine, faces and saliva for screening and diagnostic purposes. In all samples, specimen collection, storage and processing must be meticulously performed to avoid contamination of the samples with lead in the surrounding environment. Teeth, nail and bone reflect long term exposure to…

For my orthographic drawing, I created three different views of my putt putt boat. I created a top, front and side view of my boat. I created an orthographic drawing because it accurately shows the top, front and side views clearly and more precisely. I was representing a 3d object in 2 dimensions. My three views show how each side of the boat looks in detail and the accurate measurements of the boat. To create the hull, we shaped a piece of aluminum into a “pocket” by using sandpaper to sand…

The ancillary process for methanol production is purification. The aim of purification process is to separate the methanol from any impurities such as water, alcohol, alkanes, etc. Methanol is transferred to storage tanks which is specially assigned for crude Methanol. The Methanol will then be feed to the next part of the operation which is purification. In two different distillation columns, Methanol is purify to achieve the product quality which is required. In the first column, low boiling…

Last week in science class we worked on a lab called the Big Freeze. The objection of the project was to make a cooler and try to keep a block of ice frozen for 24 hours. For my cooler, I used a cardboard box, and put my ice container right in the middle of it and taped it down. Then I put bubble wrap on top of the ice container. After that I put a layer of aluminum foil on the bubble wrap and then put cotton balls and extra styrofoam on top of the foil. The last thing I did was put duct tape on…