Chemical process

The objective of this experiment was to oxidize 9-fluorenol with bleach to form 9-fluorenone. This was done with three different reactions, each under different conditions. The reactions were evaluated using the TLC plate to see how far each reaction progressed. During the experiment reaction test tube 2 had the darkest yellow color out of the three reactions. On the TLC plate the starting material had one dot, with an Rf value of 0.22. Reaction 1 had two dots, with Rf values of 0.29 and…

In this lab, we took four separate onion bulbs, labeled them A,B,C, and D, and put them in a beaker filled with water. We recorded the growth in number of roots and their average length for days one, two, and five. Then we put Bulbs B, C, and D in beakers with different amounts of caffeine and left Bulb A in water. We then recorded the number of roots and their average length on days two, three, and four. After that, we took and onion root form Bulbs A, B, C, and D, stained them, and looked for…

Trebuchet: A machine used in medieval siege warfare for hurling large stones or other missiles. This is one of the most important and game changing weapon of all time. When the trebuchet is fired, the weight box falls and the force of gravity causes rotational acceleration of the attached throwing arm around the axle (the fulcrum of the lever). The throwing arm is usually four to six times the length of the counterweight portion. These factors multiply the acceleration transmitted to the…

Catherine Delker Honors Chemistry – Yellow Blue Beaker Experiment Lab Report 8/20/15 Blue Bottle Experiment Problem: The purpose of this lab was to determine the oxidation rate of the Methylene blue solution when tested with varying amounts of solution. Background: The Blue Bottle Experiment is a classic demonstration of a Reversible oxidation-reduction reaction with an alkaline solution of glucose that acts as a reducing agent. It is known that, “Methylene blue speeds up the reaction,…

All living systems contain buffer solutions to sustain the structure and activity of biological components such as DNA, RNA, proteins, carbohydrates, and lipids. Buffer solutions are remarkably resistant to pH changes and generally consist of a weak acid and its conjugate base or a weak base and its conjugate acid. In the laboratory, artificially made buffers are often used to help maintain a biological system at the proper pH. A laboratory buffer should be inert in the system being studied.…

Sofya Tkachman AP Biology, A2 Dr. Lau 15 September, 2015 Enzyme Catalysis I. Purpose Measure the activity of catalase in potato extract using several different methods. II. Procedure a) Cut 20 small circles from a large filter paper disk using a hole puncher. Clean and dry several medicine cups and pour hydrogen peroxide into one. Put the catalase enzyme, previously prepared by blending a potato, into another medicine cup. Make a 1/8 dilution of the catalase by adding chilled distilled water.…

Canadian Involvement: The Canadian Parliament didn't choose to go to war in 1914. The country's foreign affairs were guided in London. So when Britain's ultimatum to Germany to withdraw its army from Belgium expired on 4 August 1914, the British Empire, including Canada, was at war, allied with Serbia, Russia, and France against the German and Austro-Hungarian empires. The first major battle fought by Canadian troops in the First World War took place from 22 April to 25 May 1915, outside the…

In conclusion, we reported the synthesis of fused and isolated triazoles based on thieno[2,3-d]pyrimidines. The synthesized 1,2,4-triazolo compounds were screened for their anticancer activity at a concentration of 10 μΜ against a panel of 60 cell lines derived from nine different types of cancers, and also screened for their PDE 5 inhibitory activity. The possibility of combining 1,2,4-triazolo moiety to thieno[2,3-d]pyrimidines should open new opportunities for the rational design of…

Atoms are the simplest form of matter. On Earth matter can be a solid, liquid, or a gas. The atoms that create the states of matter also create elements. Currently, there are organized on a chart known as the periodic table, one such element is Germanium. In fact, Germanium has a symbol known as Ge. A symbol is a shorter way to represent the element. All elements have a symbol, atomic mass, atomic number, and a number of protons, neutrons, and electrons. Germanium’s atomic mass is 72.64, this…

The Periodic table is a table that organizes the different known elements, and Neon is one of those elements. Neon is an element that is a non-metal and also a noble gas. The start of the element, Neon, was when a Scottish chemist named William Ramsay discovered Neon, Krypton, and Argon, which are all noble gasses ("Periodic Table of Elements: Los Alamos National Laboratory." Periodic Table of Elements: Los Alamos National Laboratory). For this achievement, William Ramsay won the Nobel Prize in…