Chem Essay

833 words - 4 pages

The overall purpose of Green Chemistry is to reduce pollution, with normal chemistry you mix your chemicals together to make your product, which can be potentially hazards or the waste can be, but with green chemistry if you ever have to deal with those hazards you need to manage exposures to the, in green chem, a hazard is the first point of interest when analyzing your problem. You may have heard of green chemistry in another term "sustainable chemistry". With all this, green chem is there to make chemistry my efficient and effective with the real world problems. Green chem isn't simply just cleaning up pollution though it removes pollution at its very nature by eliminating hazards in ...view middle of the document...

Use catalysts, not stoichiometric reagents: Using catalysts instead of stoichiometric reagents is preferred as catalysts require less energy and are more efficientDesign chemicals and products to degrade after use: When designing chemicals chemist should make them degrade after their use so they don't pollute the environment around themAnalyze in real time to prevent pollution and minimize the potential for accidents: The act of analyzing the chemical reaction making sure the temperature, pH level etc. are at a right level so no accidents or waste occurInherently Safer Chemistry for Accident Prevention: Using chemicals they have a low chance of causing potential accidents including explosion, fires and releases.All of these rules or principles are important to the everyday needs of chemistry but I will be focusing on the prevention of waste in chemistry. Alot of industries use the principles of green chemistry for example in the production of computer chips scientists at the Los Alamos National Laboratory use a process that uses carbon dioxide in its chip preparation, which decreases the amount of energy water and chemicals it need to use which in turn reduces the pollution the product out puts.A scientist at the University of Delaware has created a method in using chicken feathers to create circuit boards, these circuit boards actually perform 2x faster than nor...



4264 words - 18 pages PART A: Investigation of lattice structures Type of bonding Metallic Name and formula of chosen substance Copper- The formula for Copper is Cu. ​How the structure affects the property Melting and Boiling Point Melting Point:​ 1083​⁰ C The melting point for copper is 1083​⁰ C. Copper and Copper alloys have a very high melting point as it is a very difficult metal to melt. Above its melting point, copper keeps it’s pink colour after an enough

Experiment 4 and 5 for chem 117 - chem 117 - lab report

1726 words - 7 pages Summary The purpose of Experiment 4 was to determine the effects of concentration on the amount of light transmitted through aqueous solutions. The general procedure used in this experiment was to first prepare an undiluted sample of copper sulfate by obtaining two clean cuvettes. One of the cuvettes was used as a blank sample filled with deionized water which served as a solvent, and on the other cuvette, it was rinsed out with 0.5 mL of the

chem assignemnt 1for the kids who need it incluidieng those suffering formm asl and ptsd. - st. lawrence chem - Assigneibhme

3740 words - 15 pages Eseb vukbsdjbsd;hsduohi, cvj,sbnsd ilh ilhildvldb lvbsdjklvhb jkbjkdb vjk jbdvjk bgv dbsv bvbnbxcnbv sdujdjbvjsd kb jsdba vjbdv kjba smwv euilfgs jkbdhsgbdvuebuig djbeufguidgh bjhsebjkfb sebvjksdbv jkbvukdb vjkjvbjld klsdhvjkldihsdvl;sdbsdb nxklm, hjcx, m, ww a, md m j,m,bvjbsdvc jmbjkbsdvm vdm bvklsdbsd bmxcjbsdvbd mcjklbsdfjbsdklbdj,xcbjklsdv xcj, sd vdb jvb sd Eseb vukbsdjbsd;hsduohi, cvj,sbnsd ilh ilhildvldb lvbsdjklvhb jkbjkdb vjk jbdvjk bgv

reformation of copper through the copper cycle - texas a&m university; Chem lab 111 - essay

1073 words - 5 pages Reformation of Copper Through the Copper Cycle Authors: Lauren Yarborough* and Alex Farish; Chemistry 112 Section 505. Introduction: Copper is a very important element due to both its chemical and physical properties but has its down sides when it comes to being earth-friendly. Since copper isn’t biodegradable, it just accumulates over time. In this experiment, both my lab partner and I looked at the chemical reactions of copper as it underwent

California: Does It Meet Everyone's Expectations?

790 words - 4 pages -garlic odors began drifting into town during the evening wind, nobody knew what was going on or even questioned it (Street 262). The city at last found out they had a toxic dump right in their backyard. Finally, they had learned the company was accepting; cyanide, benzene, asbestos, cleaning solvents, heavy metals, and numerous other chemicals (Street 262). In 1988, when Chem Waste tried to get permits to open an incinerator near [what was

Thermochemistry - General Chemistry UNH - General Chemistry UNH - Assigment

3683 words - 15 pages CHEM 403 Fall 2018 1 Thermochemistry Goals and Challenges: The following experiments concern heat: heat flow, heat production and the relationship with bond breaking and bond making. In Part I, you will study heats of dissolution; in Part II, you will model the relationship between heat and bond breaking and making and will then determine the heat of combustion of methanol via calorimetry. Bring to lab:  Lab notebook  Safety eyewear, lab

Mesoporous Zeolites in methane aromatization - Class - Mesoporous zeolites

1579 words - 7 pages carbon deposits, thereby prolonging the life of the catalyst. [21: . Choi M, Cho H S, Srivastava R, Venkatesan C, Choi D, Ryoo R. Amphiphilic organosilane-directed synthesis of crystalline zeolite with tunable mesoporosity. Nature Mater, 2006, 5(9): 718‒723 ] [22: Chen L, Li X, Rooke J C, Zhang Y, Yang X, Tang Y, Xiao F, Su B. Hierarchically structured zeolites: synthesis, mass transport properties and applications. J Mater Chem, 2012, 22(34

In Specific, The Mass Of A Volatile Unknown Liquid Was Discovered With The Use Of The Calorimeter

1015 words - 5 pages This is a standardized lab write up for an American Advanced Placement Chem class dealing with the use of a calorimeter. In specific, the mass of a volatile unknown liquid was discovered with the use of the calorimeter.Experiment Eleven - Heat Effects and CalorimetryIn this lab, molar mass of a volatile liquid was determined through the use of a calorimeter The lab validates the equation Q=S.H * M * T, by using the known or calculable values of

Calorimetry lab - Abstract and Prelab - Chemistry - Assignment

895 words - 4 pages NFHS – Chem I - HONORS Calorimetry Lab – Specific Heat of a Metal Calorimetry Lab – Specific Heat of a Metal Abstract Chemists can identify substances on the basis of their chemical and physical properties. One unique physical property of a substance is the amount of energy it will absorb per unit of mass. This property can be measured quite accurately and is called specific heat (Cp). Specific heat is the amount of energy measured in joules

Graphene synthesis, key characteristics, and uses in future techologies - Year 11 Chemistry - Scientific Poster

1372 words - 6 pages Letters, 65-83. Nicol, W. (2018, November 15). What is graphene? Retrieved from Digital Trends: Sanchez, e. a. (2012). Chem Res Toxicol, 15. The magazine for 2D nanomaterials: Graphene. (2015, August 8). UK graphene centre partner with Chinese aviation centre. Retrieved from 2D materials magazine: chinese-aviation-centre/ The

This Essay Is About The Celestial Spectroscopy: Making Reality Fit The Myth

2143 words - 9 pages Free J. Sci. 7, 101-113 and 251-252 (1827); 8, 7-10 (1828).H. E. Roscoe to G. G. Stokes, 24 February 1860, from Stokes papers, Add. MS 7656.R788, Cambridge University Library.W. De la Rue, Chem. News 4, 130 (1861).A. Comte, Cours de Philosophie Positive, vol. 2 (Baillière, Paris, ed. 2, 1864) p. 6, translation by the author.A. Clerke, A Popular History of Astronomy During the Nineteenth Century (Macmillan, New York, ed. 2, 1887), p. 180.W. Huggins, Nineteenth Century 41, 907 (1897).H. Schellen, Spectrum Analysis in Its Application to Terrestrial Substances (Longmans Green, London, 1872), p. 466.

killer cup o coffey for the average drinker - class - essey

665 words - 3 pages  of the cuvettes with chem‐wipes and remember to only touch the ridged sides.  4. Fill a cuvette with each of the 5 standard solutions (#1‐5 above) using the disposable pipets.  5. Fill another cuvette with the unknown FeSCN+2 solution.  6. Fill the final cuvette with distilled water.  This one will be called the “Blank” below.  7. Since the cuvettes cannot be easily labeled use the table above as a label for them.  Preparing the Computer  1

use of prisons and their correctional style - english 1101 - research paper

3915 words - 16 pages Free ., Papakonstantinou, M.,Panagiotakos, D.B., Kapsokefalou, M.(2011) Consumer perception and use of iron fortified foods is associated with their knowledge and understanding of nutritional issues. Food Qual. Prefer. 22(7):683–688. 19.Robbins, K.S., Shin, E., Shewfelt, R.L., Eitenmiller, R.R., Pegg, R.B.(2011) Update on the healthful lipid constituents of commercially important tree nuts. J. Agr. Food Chem. 59(22):12083–12092. 20.Servicio de

A Mass Spectrometer Inlet System For Sampling Gases Dissolved In Liquid Phases

4128 words - 17 pages cooperation in programming the IBM 7090. We are also grateful to the E. I. du Pont de Nemours Co. for supplying samples of the "FEP" Teflon. REFERENCES 1. BRUBAKER, D. W., AND KAMMERMEYER, K., Ind. Eng. Chem. 46, 1148-52 (1952). 2. MICHAELS, A. S., AXD BIXLER, H. J., J. Polymer sci. 60, 413-39 (1961). 3. BRACKETT, F. S., DANIEL, J. H., AND CRICKARD, R. G., Rev. Sci. In&. 28, 182-6 (1957). 4. HOCH, G., OWENS, 0. v. H., AND KOK, B., ilrch. Biochem. Biophys. 101, 171 (1963).

Literary Analysis - Hills like White Elephants - WR 303 - Literary Analysis

1555 words - 7 pages 1 Madison Evans Jake Sauvageau WR 303 Literary Analysis 8/30/18 Ernest Hemingway’s Hills like White Elephants The short story Hills like White Elephants by Ernest Hemingway is a story about a man and woman who are sitting at a bar at a small train station somewhere in Spain. They seem to be having a heated conversation about a mysterious “operation”. The author never explicitly says what the issue is between the man and woman, but it can be