12 Grams Of Oil Lab Report

The purpose of experiment four was to synthetically prepare a sample of salicylic acid from methyl salicylate, also known as wintergreen oil. The salicylic acid formed is to be compared to salicylic acid synthesized from benzene and determine whether or not the two acids differ. This experiment occurs through organic synthesis, meaning in order to create the desired product, the starting material must be chemically modified.

The mole is a convenient unit for analyzing chemical reactions. Avogadro’s number is equal to the mole. The mass of a mole of any compound or element is the mass in grams that corresponds to the molecular formula, also known as the atomic mass. In this experiment, you will observe the reaction of iron nails with a solution of copper (II) chloride and determine the number of moles involved in the reaction. You will determine the number of moles of copper produced in the reaction of iron and copper (II) chloride, determine the number of moles of iron used up in the reaction of iron and copper (II) chloride, determine the ratio of moles of iron to moles of copper, and determine the number of atoms and formula units involved in

The purpose of this lab was to identify unknown bacteria cultures using various differential tests, and my unknown bacteria is #17. The identification of these unknown cultures was accomplished by separating and differentiating possible bacteria based on specific biochemical characteristics. Whether the tests performed identified specific enzymatic reactions or metabolic pathways, each was used in a way to help recognize those specifics and identify the unknown cultures. The differential tests used to identify the unknown cultures were Gram stain, Catalase, Mannitol Salt Agar (MSA), Blood Agar, Novobiocin, Coagulase, and DNAse (Alachi, 2007).

How should the unknown microscopic organisms be classified? The concept of the experiment was to conduct a systematic observation about the traits of unknown organisms, and classify them to the right group. Making detailed observations about the traits, made it possible to identify which cell the trait belonged to because different cells have different traits. Animal cells do not have a cell wall, and has one or more small vacuoles. Plant cells has a cell wall, rectangular (fixed shape), and has a chloroplasts. Cytoplasm, Endoplasmic Reticulum, Ribosomes, Mitochondria, and Golgi apparatus to name a few.

From the results that were acquired from mixing the liquid reagents with each powder, it was determined that Unknown Mixture #1 consisted of baking soda and cornstarch. When individually testing the substances from Unknown Mixture #1 with the liquid reagents, a few noticeable reactions occurred. Mixing baking soda with vinegar caused bubbling to occur. This is because a neutralization reaction took place between the two reactants. In this reaction, sodium bicarbonate(baking soda) reacts with vinegar and produces sodium acetate, water, and carbon dioxide(HC2H3O2(aq) + NaHCO3(aq) NaC2H3O2(aq) + H2O(l) + CO2(g) ). The gaseous carbon dioxide most likely tried to escape into the atmosphere and caused the bubbling to occur. Another noticeable reaction

1. First, 3.0015 g of salicylic acid were measured using an electronic balance. 2. The salicylic acid was then transferred into a 150 mL beaker.

The purpose of this experiment is to determine the molar mass of an unknown volatile organic liquid, using methods such as, the Dumas method, and then state its identity.

An unknown was given to our group from the professor. The unknown was in nutrient broth, the group received unknown number 3. And the task was to identify the unknown and try to make an educated guess, and identify the unknown #3.

The data presented is showing how much bitumen is extracted when different caustic soda amounts are added. It is important to note that in Figure 1, each group recorded that the bitumen took a long time to separate from the oil sand and rise to the top. Furthermore, Figure 1 is able to present every piece of information needed to draw a conclusion about which method is the most efficient. However Figure 2, displays a visual that makes it clear that the 18 drops of caustic soda escalated the amount of bitumen that was able to be removed. From their both Figure 1 and 2 show that there was a gradual decrease in the bitumen extracted as the pH of the water went down apart from one outlier. As Figure 2 depicts, 0 drops of the

Objective In this experiment, Raw Data Table 1: Compositions and Masses of Group A Test Tubes Group A Test Tube 1 Test Tube 2 Test Tube 3 Test Tube 4 Composition and Mass 5.002 g naphthalene 5.002 g naphthalene and 0.492 g biphenyl 5.002 g naphthalene and 1.984 g biphenyl 5.002 g naphthalene and 3.969 g biphenyl Figure 1: Cooling Curve of Group A Test Tube 1 Figure 2: Cooling Curve of Group A Test Tube 2 Figure 3: Cooling Curve of Group A Test Tube 3 Figure 4: Cooling Curve of Group A Test Tube 4 Table 2: Compositions and Masses of

My hypothesis stated, “If I measure the amount of carbon dioxide produced when yeast reacts with water and tea tree essential oil, then it will produce the least amount of carbon dioxide.” However, my hypothesis was proven to be false. My data shows that the trial with the Cinnamon oil produced the least amount of carbon dioxide, meaning that Cinnamon oil would be theoretically the most effective in fighting yeast/fungal growth.

I think that it’s going to work because I have all the materials I need.

In the experiment, the techniques of facilitated distillation and gas chromatography were used for the purpose of isolating two liquids within an original mixed solution, and to identify and calculate the percent composition ratio of each of the unknown liquids within the solution. Distillation separates and purifies different compounds by heating up the solution and finding their boiling points. There are two types of distillations, simple and facilitated. Simple distillation is the simpler form of the two, it is mainly used for the separation of a liquid and a solid from a mixture, it is also used when separating two liquids that have a difference in boiling points of greater than 40ºC. Facilitated distillation is the ideal method for separation of a number of liquids within the same solution, particularly when the difference in the boiling points are less than 40ºC. In facilitated distillation, the liquids are separated by boiling points, when the solution is heated up the liquids change from liquid gas at their specific boiling point, and then the extracted gas condenses back into a liquid. Fractional distillation is essentially thought of as a more efficient method of separation than that of simple distillation, as it is a series of

The purpose of this experiment is to isolate and identify the different lipids within and rat adipose and calf brain tissue. Lipids are biochemical molecules that alter the structural and functional properties of cells. Lipids such as cholesterol can affect membrane fluidity and be precursors for hormone and vitamins synthesis. Lipids such as Fatty acids (FA) and triacylglycerol (TAG) can act as energy storage molecules whereas phospholipids like phosphatidylcholine (PTC) can also participate in signal cascade to modify gene expression by protein kinase phosphorylation. Hence the occurrences of a lipid in a tissue can be indicative of its unique role.

Because the subjects had to inhale to smell of the peppermint oil the amount of peppermint oil inhaled from the surgical masks could not be measured so every subject that took part in the test most likely inhaled  different amount of the oil so the results would be different for each person making the overall experiment invalid. There was only on task to measure reaction time but it would have improved to validity of the experiment if there was more methods to test reaction time. Also with inhalation the smell of a substance will stay with one person for longer then it will for another so this method of inhaling the peppermint oil can’t be conclusive.