Quantum chemistry

For our experiment, we will test SRT protein ligaments in a variety of conditions to determine the functionality and resilience of SRT protein ligaments relative to artificial and native human ligaments tested under the same conditions. The first test will examine the effects of the internal environment of the human body on SRT proteins. For this section of the experiment, we will place SRT ligaments in a solution analogous, in temperature and acidity, to the environment of the human body. The…

Draw resonance structures showing all the positions at which the positive charge is delocalized on the aromatic ring in the phenonium ion. If a methoxy group (-OCH3) or a nitro group (–NO2) were substituted in the 4-position on the aromatic ring, how would the stability of the phenonium ion change? Compare methoxy substituted, nitro substituted and unsubstituted, and order them by increasing stability. Explain your answer thoroughly. 2) Benzopinacol and benzopinacolone have nearly…

Imagine trying to figure out one possible combination to a mixture, when there are over 100 possibilities. The 8th graders had to look at the physical and chemical properties, to somehow figure out the mixture. A group of students thinks that Baking Soda and Citric Acid is what’s in the mystery mixture. That group thinks that Baking Soda and Citric Acid is in it for a lot of reasons. One reason is that the mystery mixture has circular round objects in it and the Citric Acid is circular and…

1. What are your education goals? Graduation with a Chemistry Bachelor is my long-term goal. For me, on the studying journey, earning good grade is not everything. School is a place where I meet friends and professors; alternatively, access a variety of resources from them. 2. What do you envision yourself doing in a STEM career 10 years from now? In the future, I may work in the lab to create new medicine and vaccine that help others get over mental and physical pain. I might cooperate with…

To begin the experiment, the Spec 20 was turned on to warm up for 15 minutes and set to maximum absorbance wavelength. Ten test tubes were then prepared. The Spec 20 was set to 0% and a test tube of blank solution (water) was wiped off and placed into the Spec 20. Transmittance was then set to 100% to calibrate the machine. Next, five test tubes were prepared and labeled with one of the standard solutions of 0.05 M, 0.1 M, 0.2 M, and 0.5 M CuSO4 in them. The Spec 20 was set to 600 nm and %…

Introduction: The goal of this lab was for students to learn how to use a spectrophotometer to find the absorbance of four known copper (II) sulfate solutions, four copper (II) sulfate solutions that were created by dilution, and one unknown copper (II) sulfate solution. The purpose of this experiment was to help students learn how to use the Spec-20, learn about the relationship between absorbance and concentration known as the Beer- Lambert law and see the relationship between moles, volume…

The unknown compound we received consisted of white crystal-like particles and was a solid at room temperature. During the smell test, we did not receive any indication of a distinct smell, thus concluding that the compound is ionic. The solubility tests indicated that the compound was soluble in water, NaOH, and HCl and non-soluble in acetone and toluene as shown in Table 1. The compound was soluble in water indicating that the compound is either polar or ionic, but not soluble in toluene or…

The effect of various temperatures on Enzyme activity Introduction: The basic properties of life revolve around chemical reactions. Without the presence of enzymes some of life's processes would not happen easily. An enzyme is a macromolecule serving as a catalyst, they are generally a protein based molecule, as it is in the lab, Enzymes are organic catalysts that control the rate of chemical reactions in cells while not being permanently changed or without being consumed, which makes enzymes…

Materials. Numerous substances in the experiment were used. The most frequently used was the unknown due to the need to test its physical and chemical qualities. When a solution of the unknown was made, 1.000 g of the unknown and 1.0 mL of water was used to make it. To test for the possible ions, 1.0 mL of silver nitrate and 1.0 mL of nitric acid were used for the ion test. Ammonium chloride and calcium chloride were the two compounds that were tested on to see if either were the unknown…

Introduction Enzymes are an important biological catalyst that is absolutely crucial for life to exist. The ultimate purpose of this experiment was to examine enzymes and how they function in cells, explore the result that concentrations and environmental factors have over these functions, and lastly to read and interpret graphs related to enzyme function. This type of study had various parts, therefore there are various hypotheses. The first being, if it is potato extract, then it will contain…