Colegio de San Juan de Letran College of Liberal Arts and Sciences Experiment #3 SEPARATION AND PURIFICATION OF ORGANIC COMPOUNDS: CRYSTALLIZATION Gomez‚ Paola Anne M. DOP: 2 July 2013 Student no. : 4120403 DOS: 9 July 2013 Group: Carcinogenic Remarks: _____________________________________________________________________ Engr. C. D. Sanchez Instructor THEORETICAL DISCUSSION Crystallization is a technique which chemists use to purify solid compounds. It is
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Do we live in a world where violent resistance is no longer a realistic option to oppose an oppressive regime? The Kenny reading showed that non-violence is a path that can lead to regime change. Why is that? Is it because a non-violent struggle is morally superior to a violent one‚ and is therefore difficult to oppose? After all‚ it’s difficult to justify violence against those who struggle without violence‚ for human rights‚ justice and democracy‚ things most people desire. To repress them would
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project was conducted to test the effectivity of organic and synthetic fertilizers when apply on okra plant. It also aims to test whether‚ which is better to use between the two fertilizers. In order to conduct the study‚ we have used okra seeds‚ polyethylene bag‚ and dried leaves as organic fertilizer‚ synthetic fertilizer‚ synthetic fertilizer‚ and natural soil. We have planted each polyethylene bag with 3 seeds of okra‚ labeled it as Setup A (Organic fertilizer)‚ Setup B (Synthetic Fertilizer)‚ And
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were used to determine the melting point. 6. The bicarbonate extract was acidified with concentrated HCl. A piece of litmus paper showed that it was acidic. 7. The benzoic acid was extracted by shaking it with25ml portions of dichloromethane. The organic extracts were collected in a pre-weighed Erlenmeyer flask and evaporated on the steam bath. The mass of Benzoic acid produced was determined. RESULTS (i) Naphthalene: 0.85g; Benzoic acid: 0.71g (ii) The melting point of Naphthalene: 80-89º
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Experiment No. 1: MELTING POINT AND BOILING POINTS OF ORGANIC COMPOUNDS ABSTRACT The properties of organic compounds depend on their chemical structures. Intermolecular forces of attraction affect physical properties such as melting and boiling point. Through the Thomas Hoover apparatus‚ the melting point of 8 test compounds was determined. Salicylic acid exhibited the highest melting point while naphthalene‚ the lowest. The stronger the intermolecular forces of attraction‚ the higher the melting
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THE EFFECTS OF DIFFERENT FORMULATED ORGANIC PESTICIDES TO THE PREVENTION OF OCCURANCE OF PESTS Reaman S. Balois Paulene Andrea D. Pontela THESIS REPORT Republic of the Philippines ISABELA STATE UNIVERSITY Roxas‚ Isabela THE EFFECTS OF DIFFERENT FORMULATED ORGANIC PESTICIDES TO THE PREVENTION OF OCCURANCE OF PESTS Thesis outline presented to the faculty and staff of Isabela State University‚ Roxas‚ Isabela in partial fulfilment of the requirements
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San Francisco Coffee House Case 1. Should Tensek and Pacek consider franchising over organic growth? Do a qualitative cost-benefit Analysis. (4 Points) In regards to whether Tensek and Pacek should consider franchising over growing additional business locations organically‚ there are many factors that the couple must take into account. Whether they choose to expand using a franchising or organic approach‚ there are major costs and benefits that will dramatically affect San Fransisco Coffee House
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Chapter 3 1. 1 atom of X = atomic mass (amu) 1 mole f X=atomic mass in grams 1 mole of something = 6.022 x 1023 units of that substance 1 mole of a compound =66.022 x 1023 atoms 6.022 x 1023 amu =1 g 2. What is the mass of 6 atoms of Fe? Answer: 6 atoms of Fe x 55.85 amu÷atom of Fe x 1 g of Fe÷6.022 x 1023 amu = 3. How many atoms does it take to make 1 g of Gold (Au)? Answer: 197.0 g Au =1 mole of Au
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Non-violence is more effective than violence because it helps resolve arguments in a peaceful‚ not harmful way without causing any damage. Non-violence means the use of peaceful means‚ not force‚ to bring about political or social change. People will have to wait for a change‚ but it will be a better and greater change. To begin with‚ non-violence is the most effective method for change because it’s safer. Violence is putting people’s lives in danger. Safety is “safer” for everyone. Non-violence
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Structural Effects on Stability and Reactivity. Organic Chemstry Laboratory Structural Effects on Stability and Reactivity Introduction The concepts of stability and reactivity are fundamental to understanding chemistry. In this chapter we consider first the thermodynamic definition of chemical stability. We then consider chemical kinetics (Section 3.2) and how it can provide information about reactivity. We also explore how structure influences stability and reactivity. We want to learn how
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