Purpose: The purpose of this lab is to further observe four types of chemical reactions. This lab will show four types of distinct chemical reactions and will increase my knowledge on each type.
Luminol is a chemical made up of eight carbon molecules,sevean hydrogen molecules,three nitrogen molecules,and two oxygen molecules. Chemiluminescence the emission of light in a chemical reaction which makes this substance glow a liquid blue when mixed with an oxidizing agent . In the reaction chemiluminescence does not exhibit significant amounts of heat giving off “cold light” via chemical reaction. Chemiluminescence is commonly found in deep oceans where many organisms have glowing organs the same reaction is found in glow sticks and fireflies. Oxidizing agents are a substance that brings out oxidation by reducing the electrons. Oxidation is a loss of electron in a reaction by a molecule,atoms or ion .
Photosynthesis is essential to all living organism such as animals and plants. Photosynthesis is a process used by plants and other autotrophs to capture light energy and use it to power chemical reaction that converts carbon dioxide and water into oxygen, carbohydrates and water. (Textbook: Principles of Biology). The reactants and the products of photosynthesis are:
Approximately 0.05 g of 9-fluorenol, 250mg of chromic oxide resin, and 2 mL of toluene were used for the reaction solution. The CrO3 resin consisted of little brown solid balls. The reaction solution was slowly heated to 130°C. The reaction solution slowly turned light yellow as it was being heated. 1M standards for 9-fluorenol and 9-fluorenone were used. The reaction mixture had a strong gas-like odor while it was filtered through the Hirsch funnel. After evaporating the solvent using a rotary evaporator, the crude product that was left was yellow and solid. When hexane was added the yellow solid formed into a yellow liquid.
The pigment that we chose to create is a combination of the reactants copper nitrate and sodium phosphate. This combination will create a bright blue color. The balanced equation for this combination is 3 Cu(NO3)2 + 2 Na(PO4) = Cu3(PO4)2 + 6 Na(NO3).
B1. Work under the hood! Weigh out exactly 0.1 g of ammonium dichromate and add to a test tube. Clamp and warm gently with a Bunsen burner. Two of the products of this reaction are chromium(III)oxide and nitrogen gas. Watch for evidence of the third product.
To ensure that all of the copper sulfate reacts thoroughly with the heat, it was crushed up to a fine powder. After weighing the initial mass, the crucible was then filled one third of the way with the powder. Placed on a stand, it was heated by a gas fueled flame until the reaction finished and the powder turned white. The air vents on the burner were closed as to
It was found out that our graphs for yellow 5 and yellow 6 were half the concentrations needed to mimic orang PowerAde. This was found out with the help of the TA. Both the Full Throttle and orange PowerAde used twice as much food dye concentration then what was provided for the experiment. In order to compare our made solution with the beverage, orange PowerAde needs to be diluted to a solution that contained 50% distilled water and 50% PowerAe To do this, take 5 mL of orange PowerAde and add 5 mL of distilled water. A new absorption graph can be formed and used to compare with the made
The purpose of my experiment was to see what liquids will speed up the corrosion process on a clean penny. If I soak a clean penny in bleach then the rate of corrosion on the penny will increase because the chemicals in the bleach will react with the copper and speed up the corrosion process. I tested my hypothesis by filling 9 cups with either bleach, water, or vinegar and letting the pennies sit in each cup for 3 days. My results for my experiment were surprising. The bleach corroded the penny the most. I rated those pennies 3, 4 and a 2. The water only corroded the pennies a little bit. Those pennies were rated 2, 3, and a 2. The vinegar surprisingly cleaned the pennies. I rated those pennies 0, 1, and a 1. To sum it up, I discovered that
For the Synthesis of Alum lab my lab group and I took 1 gram of aluminum foil and broke it into small pieces. Next we added 25 mL of 3M KOH solution. Once the foil was dissolved we filtered the solution through a Buchner funnel with filter paper sealed inside with water. As the solution was filtering we applied a vacuum filtration to the Buchner funnel to expedite the filtering process. Once it was completely filtered my lab group poured the solution into a beaker and covered the beaker with parafilm. We then waited overnight to allow the crystals to form inside the beaker. Unfortunately, we did not produce any crystals overnight so we borrowed some from another group. Once we obtained the crystals we had to stir them in a beakers to make more form other than just the ones we received. After we rinsed the crystals with half ethanol and half water mixture. Once they were dry we determined the mass of the crystals with a balance.
Creatinine is a waste product filtered by the kidneys into the blood (serum) and urine. High serum, and/or urine creatinine levels are indicative of kidney dysfunction. A colorimetric assay can be used to determine the creatinine concentration in the urine and serum samples from patients who are suspected to have kidney dysfunction.
The zinc powder was black in colour while copper (II) sulphate solution was blue in colour because of the presence of copper (II) ions. When the zinc powder was added to the copper (II) sulphate solution and stirred, it was hard to observe the pattern of the colour change because the polystyrene cup as covered with a lid.