Friday, January 24, 2020
molecular structure :: essays research papers
Molecular Structure Lab Objective: For this experiment we took two different molecule and virtually dissected them finding everything about them including: bond length, bond angles, the charge on each atom, the non bonded distances between atoms and the energy difference between the highest and lowest molecular orbital. Procedure: The procedure is to use HyperChem Lite to get the information needed from each molecule. But explained in full on page 16 and 17 in the lab manual. Data: The following data was found about CH4 (methane). †¢Ã‚     The bond length from Carbon to all four Hydrogen atom was the same measurement that came to be about 1.113Ã… †¢Ã‚     Not only are the lengths between all the Hydrogen atoms to the Carbon atoms the same so are the angles between the hydrogen atoms, all coming out to be about 109.47 °. †¢Ã‚     The non-bonded distances between all the parts of the molecule are 1.818Ã…. †¢Ã‚     The charge on the Carbon atom is -.143 †¢Ã‚     All of the hydrogen atoms have the same charge being .036 The following data was collected by HyperChem Lite for C2H5OH (ethanol). †¢Ã‚     All the distances between bonded Carbon and Hydrogen atoms were 1.115Ã…. †¢Ã‚     The distance of the bonded oxygen (3) to hydrogen (9) was .942Ã…. †¢Ã‚     The distance between bonded Carbon (1) to Oxygen (3) was 1.40Ã…. †¢Ã‚     Bond angle 5,1,4 was 109.8 ° †¢Ã‚     Bond angle 3,1,2 was 108.9 ° †¢Ã‚     Bond angle 6,2,8 was 107.9 ° †¢Ã‚     The smallest non-bonded distance was between atoms 9 (hydrogen) and 6 (hydrogen) it was 4.067Ã…. †¢Ã‚     The largest distance between two atoms was from 6 to 8 1.802Ã…. †¢Ã‚     The charge on the Carbon atoms were: Carbon 1=.466, and Carbon 2=-.076 †¢Ã‚     Hydrogen charges were as follows: Hydrogen’s 4,5=-.004, 6=.021, 7,8=.020, and the charge of hydrogen 9=.447 †¢Ã‚     And lastly the charge on the oxygen atom was -.891 Calculations: Formulas used in the lab†¦ E = hv = hc/ 1 ev = 1.6022E-19 Joules E is the energy difference between the highest occupied and lowest unoccupied molecular orbital (HOMO and LUMO). h = Plank’s constant = 6.63E-34 Js c = speed of light = 3.00E8 m/s formal charge = number of valence electrons – (# of unshared electrons + # of bonds) Volume of an ellipsoid is V = /6 (a + 1Ã…)(b+1Ã…)(c+1Ã…) = xÃ…3 A,b,and c are the skeletal lengths of the molecule. CH4 E = (-15.51ev)-(-24.49ev) = 8.98ev = 1.44E-18 J = hc/E = (6.63E-34 Js)(3.00E8 m/s)/(1.44E-18 J) = 1.38E-7 m = 138nm The wavelength of CH4 is 138nm and this resides in the ultra-violet spectrum and is not visible to the naked eye. Formal charge of Carbon = 4-(0+4) = 0 Formal Charge of Hydrogen’s = 1-(0+1) = 0
Thursday, January 16, 2020
The development of aggression and violence in the American youth
In the introductory portion, the writer introduces the relevance of the study to the present reality by briefly indicating the focal areas that are covered in the paper. Basically, the thesis statement or argument is presented in prà ©cis to complete this part.Problem statements and milieuThe paper seeks to explain the development of an individual’s aggression and or violence in the context of society, family and internal mental or thinking patterns. Whether the results are a combination of the factors will be posed as inquiry in this section with a corresponding hypothesis.Review of Related StudiesThis portion explains the peer-reviewed works of psychologists and sociologists and others in the profession with the intention of analyzing the important and strategic breakthroughs in science on the issue and which the present paper seeks to accentuate considering the need of the hour (Works of Bjork, Furst, Sidney, Wacker, David, Tremblay et al, Harris, Mary; Hogh et al, Hob bs, Brackney et al,II. Results and findings A. Definition of termsUsing DSM and other credible sources for the operational definition of the foremost significant terminologies employed in the paper. (Works from Aggression from Encyclopedia of Science, Technology, and Ethics, DSM definition) B. Theoretical Framework       ~ Factors influencing Aggression           Explores different perspectives in the understanding of AggressionII. Discussion of Results and FindingsIt is assumed that the following are major contributing factors that influence aggression and/or violence. Discussion section of the paper further establishes the researcher’s findings based on the problem statement and hypothesis made. The following are salient points that are developed by the researcher.â€Å"What can make an individual youth commit violent acts?† ~ Pornography and violence in the internet and media ~ Depression among th e teens ~ Domestic Violence (DV) and Aggressionâ€Å"What should or can be done to reduce the incidence or curtail youth violence or aggression?†Since the issue is a prevailing and existing individual, familial and societal problem, and many studies are already conducted to apply effective interventions, this section of the paper seeks to enumerate and describe the leading and effective treatments and/or interventions on the matter. It also attempts to give a balanced view on the plus and minuses or pros and cons of the prescribed interventions.III. Summary of findingsProvides a brief summary of the study’s findings.IV. Conclusion and RecommendationThe writer addresses the reader to his/her own reflections regarding the study he/she made on the problem. However, considering the limitation of logistics and other factors, she/he prescribes or outlines his/her own recommendation/s regarding the problem and it is to be undertaken in future studies.IV. ReferenceExact doc uments used or employed throughout the study are herein listed in APA format.
Wednesday, January 8, 2020
Chili Case Group Analysis Essay - 5365 Words
Chili Sauce Case Group Analysis Course: MHR405 Instructor: Kemi Salawu Due Date: Friday November 21, 2014 1. Identify the counterproductive employee behaviours apparent in the workplace. Explain why employees engaged in these behaviours (i.e. what may have influenced them to behave this way?) (20 marks) The situation described by â€Å"The Chili Sauce Case†is a classic example of a counter productive work environment. Many factors contributed to the lack of effort shown by the employees. These counter productive behaviours are demonstrated in two areas: counterproductive behaviours in the kitchen and counterproductive behaviours on the bottling line. Counterproductive Behaviours in the Kitchen Workplace harassment is a†¦show more content†¦The women’s treatment of the students affected their productivity in the form of a self-fulfilling prophecy; the women had very low expectations of the student’s work performance (McShane Steen, 2008, p.76). This led them to bully the two for their own amusement, which in turn led to the frustration of the students, and caused the boxes to be thrown at the wall. As mentioned earlier, unnecessary conflict resulted in the wasting of resources, which is counterproductive to any work environment. It slows down production capabilities, increases financial expenses for damage goods, and increases safety risks. The students were being worked at a pace that was too fast for their skill set. They tried to tell the women in control of the line speed that it was too fast but the women responded with laughter and teasing. The communication on the production line had barriers. The noise of the machines was too loud for the students to be able to communicate between them, thus affecting their productivity. This led the students to seek alternative ways to slow down the speed of the production line. The actions of the women caused the students to throw boxes against the wall in order to stop the production line and catch up on their work while the bottles were being cleaned from the floor. According to an article written by Kish-Gephart et al., (2010) expl ains why the students were compelled to throw the boxes at the wall. TheShow MoreRelatedBuilding an Effective Marketing Plan6928 Words  | 28 Pagesbe affected by it. If the plan is directed to an external audience, such as friends, banks, venture capitalists, or potential investors, for the purpose of raising capital, it has the additional function of being an important sales document. In this case, it contains elements such as the strategic plan/focus, organization, structure, and biographies of key personnel that would rarely appear in an internal marketing plan. 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