From the 36 mixtures there were certain mixtures that formed a colored precipitate i.e. white, black, brown, cream, and cloudy reactions were occurring. The reagent that was able to form the most precipitate was AgNO3 making the process of determining the compounds easier. After all of the solutions were determined the test tubes were washed with distilled water three times and put in to the waste bucket and the lab area was cleaned up by putting back the plastic dropper back in to place and wiping the counter…
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.…
As the concentration of OH- is increasing, the rate of reaction is increasing at a very low rate. This is a plausible conclusion because a reaction involving a tertiary alkyl halide will follow SN1 mechanism.…
In this part of the lab, we pour 20 mL of Hydrogen Peroxide and 1 mL of yeast catalase in the reaction chamber and then submerge it in the water bath. After it was done, it can be concluded that the gas levels increased because when we first started timing it, the gas levels were at 76, but as time went by, the gas levels started to increase and in the end of the last interval, the gas level increased all the way up to 100. This result occurred because there were many active sites that were empty for the substrate to bind to and since they binded to the active sites, it started increasing a lot at the beginning. However, when the active sites started getting more occupied, the substrate could not bind to as much active sites, so the gas levels started to increase alittle less as time went on and in the end, there was no active sites that were…
Discussion The T-test from the class supported our hypothesis by showing that Sulfuric Acid diffused significantly faster than phenol red at both temperatures (Fig 1). We can say that our hypothesis for experiment one is supported under certain conditions. The rest of the data in our charts supports our hypothesis as well. However it is not well supported.…
b. Add two drops of 6.0M HCl(aq), 0.5mL 10% Hydroxylamine-HCl, six drops 2.0M Sodium Acetate, and 1.0mL 0.1% 2,2-Dipyridyl solution to the test tube. c. Fill the test tube to the 10mL mark with DI water and the color will fully develop in 15 minutes d. Prepare the four other standard solutions with appropriate amounts of the solutions. 9. The sample uses 2.0mL from the volumetric flask with the dissolved Fe and add the appropriate reagents. 10.…
The purpose of conducting this experiment was to explore how different factors affect the reaction rate of enzymes reacting with their corresponding substrates in order to learn more about how enzymes function in different environments. The independent variables investigated in this experiment were the concentration of different substrates, the temperature of the environment, and the effect of a catalyst on the reaction rate. The dependent variable for all of the investigations was the time it took for the reaction to occur. To investigate the effect of the concentration of the substrate on the reaction time, four test tubes were used.…
The last reaction involved the unknown compound and silver nitrate (Ag(NO3)2), another salt. A milky, white precipitate was produced (AgCl2) and there was no change in pH. After performing these reactions, it was apparent that our unknown compound (KCl) was not very reactive. There were some conclusions about its reactivity that we could make from the results. When the unknown compound is combined with a strong acid or base, there tends to not be a visible reaction, probably because the products are soluble. The resulting solution when the unknown compound was reacted with a strong acid had a very low pH value, meaning that it became very acidic.…
The experiment conducted was to observe the enzyme catalysis of Horseradish Peroxidase with different determining factors. In this experiment the horseradish peroxidase enzyme should have an optimal temperature of 35°C, should have an optimal pH of 6, and should catalyze rapidly with the substrate and enzyme concentration. We were able to observe that the enzyme reacts best with its optimal temperature of 35° C and optimal pH of 6. Moreover, when there’s a high the substrate concentration and a high enzyme concentration we can observe a rapid enzyme catalysis. The hypothesis was partially falsified for the optimal pH and the optimal temperature were both different than that stated in the hypothesis.…
Observations and Results: There were a variety of physical observations that could be made as the experiment progressed. Initially after the addition of the sulfuric acid from the Repipet, the solution was a slight yellow…
Experiment 1. Title: How does the amount of baking soda affect its reaction with vinegar? Aim: To find out how different amounts of baking soda (soda bicarbonate) affect the length of its chemical reaction with vinegar (acetic acid).…
Then, the test tube was placed into an ice bath for fifteen minutes. The precipitate formed was then filtered using vacuum filtration. Once the filtration process was completed, we measured the powdery solid using constant weighing to obtain the dry yield of the product formed. The acetaminophen synthesized was used to perform cerium and universal indicator tests.…
Purpose: To test the effect of inorganic and organic catalyst concentration and surface area on the reaction rate. Introduction: In this experiment the experimenters will seek to determine what factors determine the rate of a reaction with a catalyst. A catalyst is a molecule that starts a chemical reaction, but it is not part of the reaction it is causing.…
Abstract This experiment involved an electrophilic aromatic substitution of bromobenzene. Two products were formed: 4-nitrobromobenzene (4-NBB) and 2-nitrobromobenzene (2-NBB). Utilizing column chromatography and recrystallization, separation and purification of the two products was obtained. The mass of 4-NBB, the para product, was 1.57 grams, while the mass of 2-NBB, the ortho product, was 0.80 grams.…
Conclusion: The the precipitation reactions lab eight out of the fourteen occurring reactions were precipitates. A precipitate means that a solid substance was formed or a substance that is not aqueous was formed. The reactions that did not form a precipitate were DNR, which means that they did not react. At station one barium chloride and potassium nitrate did not react but barium chloride and silver nitrate reacted to form barium nitrate and silver chloride. The precipitate at station one was silver chloride.…