Acid-base chemistry

Today in class we used GloGerm to see how well we wash our hands. Since school just started many people are getting sick including me. Washing our hands is a very important during the flu season and every day. Illnesses are spread when particles from a cough or sneeze gets in the mouth or nose of a nearby person. This includes doorknobs, desks, tables, phones, pencils, basically anything you touch and someone else touches. It is key to not touch your eyes, mouth, or nose especially during the…

When I first downloaded the outline to lecture two and saw the tittle “Biological Bases of Behavior” I thought “okay he’s just going to go over all the parts of the brain and tell us a little bit of what the parts do.” The amazing things is that it wasn’t like that at all, I learned so many new and interesting things. One thing that really stood out to me was when he started talking about sensory information and motor information. I thought it was so cool how all the sensory and motor…

There were a few practical problems when going through the steps in the extraction and purification of paracetamol from tablets. A problem that could be faced with this is accuracy. This would be an issue if the scales were not fully set to zero. This could be overcome by calibrating the spirit level. Also it takes time for it to fully reach its weight on the reading so you may move them too quick before the right weight has been set. Too add to this the propanone may not be filled to the…

There are factors that can affect the enzymatic activity. Enzymes are known to speed up the biological reactions. It is specific to its substrate which in this experiment is known to be catechol. The catechol oxidase is used in all parts to express the concentration in the enzyme reacting into ortho-quinone (Schultz, 2006). The catechol oxidase if from the potato that was used in this experiment. The enzyme was extracted as the full strength after centrifugation and used the homogenization as…

biology and science courses. The reason why I say this is that the process that information is taught in the lecture course was a bit different from how some other courses would normally be taught. Comparing this course to previously biology and chemistry courses, this course focuses on the why rather than what is the answer. This certainly helps as it makes up need to find a connection to why some is the way it is, which benefits many of the different topics that are taught through the course. …

Cobalt: The element Cobalt it is located on the periodic table, Group 9. Cobalt is the 27th element on our Periodic Table. It is a chemical element, it has a density of 8.9 grams per cubic centimeter. Cobalt has a boiling point of 3,100 degrees Celsius (5,600 degrees Fahrenheit). Cobalt’s symbol is Co, The atomic # is 27 so the protons and electrons are 27 as well. Cobalt has an atomic mass of 59 and 32 neutrons. The melting point is 2,719 degrees Fahrenheit. This element was discovered in…

In lab, a sample of crude caffeine was purified using the technique of sublimation. Thin layer chromatography (TLC) was used to verify the caffeine's chemical structure and purity. Sublimation played a huge role in the purification of the crude caffeine. The process of sublimation is to take a chemical and change it from a solid phase directly into a vapor. Another reason as to why sublimation was used is because the caffeine can be separated from its contaminant due to the fact that it does…

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…

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 so strong that it can…

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…