Chemical reactions

Introduction Four reactions were done using coffee cup calorimetry for each. Two Styrofoam cups were stacked together for each reaction performed, with a piece of cardboard used as lid with a hole for the thermometer. The beginning and final temperatures were taken for all reactions and solvents used. The end result and point of the experiment is to find what ΔH. Also this is a constant pressure calorimetry experiment. The goal of each of the reactions is to get ΔHrxn which is represented in…

In A Doll’s House, by Henrik Ibsen, people today can clearly see how Torvald mistreats his wife Nora. He treats her like a pet and calls her by little nicknames that are not appropriate for someone such as your wife. For example in the opening scene he says to her, “Is it my little squirrel bustling about?”(Ibsen), this is something people today find to be completely sickening but then it was a thing that was common and accepted. During the time it was written people acted in the exact…

variety of methylated natural products. With this concept, we used the aforementioned natural compounds as substrate for biotransformation reaction. Culture of recombinant E. coli strain was prepared and induced as explained in materials and method. In vivo reaction mixtures analysis of different substrates revealed the presence of methylated product in each reaction mixtures except naringenin and quercetin. Prominent single product peak was detected in case of 7,8-DHF (product retention time…

Adhikary, Sujit. “Vermicompost, the story of organic gold: A review.” Scientific Research, Vol. 3, No. 7. Scientific Research Publishing Inc., [circa 2014], cesantaclara.ucanr.edu/files/235723. In the online article, “Vermicompost, the story of organic gold: A review,” the author dives into the benefits of vermicomposting by explaining the basics of the concept, and then digs deeper into the values and assets of this “organic gold.” The article states how vermicomposting not only gets rid of…

Determining the Chemical Formula of Hydrated Copper (Ⅱ) Sulfate Using the Empirical Formula Introduction In this experiment, the molecular formula of hydrated Copper (Ⅱ) Sulfate will be determined. In order to determine the molecular formula, the empirical formula is needed which is the ratio of moles of one substance to another. In this experiment, it is the ratio of Copper (Ⅱ) Sulfate to water. CuSO₄・XH₂O The empirical formula can be determined if the moles of the compared substances…

We first evaluated whether Honokiol treatment was toxic to the APP-CHO cell line. Cells were treated with various concentrations of Honokiol (0.5 μM, 1 μM, 2 μM, 5 μM, 10 μM and 20 μM) for 24 h and cell survival was determined by Prestoblue® assay (Fig.1A). As shown in Fig.1A, when exposed to Honokiol concentrations of 10 μM or lower, the viability of APP-CHO cells was the same as untreated control cells. However, a significant decrease in cell viability was observed with 20 μM Honokiol…

they affect reactions? Enzymes force reactions, in cells, to maintain a speed necessary for life. Enzymes can also be considered catalysts because they require the reactions to arise faster without themselves changing. For this experiment, the substrate in the enzymatic reaction was sucrase, and it will be causing sucrose to change resulting in the following equation: Sucrose → Glucose + Fructose Where the arrow is in the equation indicates the enzyme, sucrase, used to speed up the reaction. In…

Zedina Martin Dr. Adair English 201 8 March 2018 When there is love anything is possible, not! The poem “The Passionate Shepherd to his love” is a pastoral and romantic poem by Christopher Marlowe that has a focus on the Shepherd’s love. The speaker of the poem is the Shepherd. The poem “The Nymph’s Reply to the Shepherd” is a poem by Sir Walter Raleigh in response to Marlowe’s poem. A Nymph is the speaker of the poem. Raleigh’s poem is a direct mockery of Marlowe’s poem and all the claims and…

In Greek, this is an onomatopoetic word. This means it’s a word that imitates the sounds associated with the objects or actions it refers to (like the word buzz in English sounds like the sound a bee makes when he is flying around). The word zeloo imitates the sound of boiling water, and it literally means to bubble over because it’s so hot! In a positive sense, zeloo is to be zealous in the pursuit of good, to desire earnestly, to strive after, to pursue, to be eager to possess. In the…

Electrical properties Figure. 8 shows the temperature dependence of resistivity of the Co(II), Ni(II) and Cu(II) complexes. As seen, the data reveal a semiconductor behavior where the resistivity decreases with the increases of temperature. The decrease of the electrical resistivity with increase of temperature is resulted from the increase of the charge carriers that can overcome the energy barrier and participate in the electrical conduction where in metal complexes, the metal…