Equilibrium chemistry

I want to be a part of the NSF-REU program because I know I would make a great contribution. In an informal research project for my biology lab course, I led a team of four in a time-crunched, self-created lab. I took up the role of leadership, assigned tasks, organized meetings and worked outside of class hours to complete the testing. Taking charge wasn’t always easy for me but, at the College of Saint Benedict, there is a NSF S-STEM scholarship program called FoCuS. The program provides…

solution as molecules instead of ions. Colligative properties are properties of a solution that depend on the amount of solute dissolved, and not dependent on the identity of the solute. The colligative properties studied in this current chapter of chemistry are: vapor pressure lowering, boiling point elevation, freezing point depression, and osmotic pressure. The van’t Hoff factor for a solute is equivalent to the number of particles, in moles, will break apart in the solvent. When an…

Whether we notice it or not, chemistry lives in our bodies. Things such as skin conditions, digestion, breathing, and hair growth all deal with chemistry in their own way. They all have certain chemical reactions and chemical changes that affect the way our bodies work. Even though we study different curriculums during chemistry such as the chemical equations, chemical reactions, and other things we have learned go far beyond what is said in class. During food digestion there are…

Where M.R is the moisture loss ratio, M_0 is the initial moisture content, M_t is the moisture content at time t, M_e is the equilibrium moisture content, t is time (minutes), and a, b, c, and k are constants. For the effectiveness of diffusivity, Fick’s equation was used (5) to estimate the dehydration kinetic of different osmotic conditions. M.R=((M_t-M_e)/(M_0-M_e ))=〖8/π^2 e〗^((-(π^2 Dt)/(4L^2 )) ) …(5) Where D is the effective diffusivity, and L is the length of the (cubical) sample.…

molecular etiology of various diseases and mechanism of drug actions. That builds my interest to achieve cutting-edge knowledge in biological chemistry to delve the physicochemical process,…

The following is a lesson sequence which modified the above experiment to promote inquiry based learning process. The aim of the experiment: Students use the change in the colour of red cabbage indicator to classify substances as either acid or base. Note: This activity may take more than one lessons. On the first lesson, students group, discuss and prepare their experiment. On the second lesson, students will have opportunities to carry out the investigation, then record, process, and evaluate…

The Chemical Safety Board (CSB), who responds to only the most serious chemical related accidents, has reported 120 laboratory accidents resulting in 87 evacuations, 96 serious injuries and three deaths since 2001 (Mulcahy, Young, Gibson, Hildreth, Ashbrook, Izzo & Backus, 2012). Every year thousands of students and faculty working in research laboratories experience the pain and suffering of minor accidents, injuries and illnesses. Hundreds suffer serious injuries and on average one researcher…

trend but my thought process was quite dissipated since I get admitted department of pharmaceutical science at the University of Dhaka, best institution of Bangladesh. During my undergraduate studies, I gained comprehensive understanding of organic chemistry for two years with sophisticated laboratory experience. This subject gives me the basic idea about chemical process inside biological system. In addition to this, mandatory two years course of Physiology helped…

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…