Levels of Life Worksheet Complete all three parts of this worksheet. Part I Atomic Structure Fill in the missing information on atomic structure and organic compounds. Atomic StructureSubatomic ParticleChargeLocation in an AtomProtonPositiveNucleusNeutronNeutralNucleusElectronNegati- veCircular Orbit around nucleus Organic CompoundsLarge Biological MoleculeAtoms it ContainsMonomer(s) Function(s) in Living OrganismsCarbohydratesC‚ H‚ and OMonosaccharidesSource of energyLipidC‚H and OGlycerol and
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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 one of the fundamental procedures each chemist must master
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Chemistry 2 Jorge Nuñez Ms. Principe / Period 2 February 8th‚ 2011 Aim: How are we going to determine the empirical formula of a compound? Do Now: 1) What is the percent by mass of oxygen in H2C2O4? H2 = 2(1) = 2 ; C2 = 2(12) = 24 ; O4 = 4(16) = 96 Gram Formula Mass = 90 Percentage of Oxygen = 6490 x 100 = 71% 2) Calculate the percentage of water: -Mass of empty crucible and cover = 11.7g -Mass of crucible‚ cover‚ and hydrate before heating = 14.9g -Mass of crucible
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PURIFICATION OF ORGANIC COMPOUNDS AIMS: To isolate organic‚ inorganic and component from a given sample. To become acquainted with various separation methods. To examine the solubility behavior of the various compounds in a mixture using different solvents. INTRODUCTION A commonly used method of separating a mixture of organic compounds is known as liquid-liquid extraction. Most reactions of organic compounds require extraction at some
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Plan: Observing with a Compound Lens Microscope Grade 10 Biology Objective Students will be able to bring into focus the lens on a compound light microscope and make an accurate observation of a plant cell. Standard State Science Framework: Students will be able to use the tools of scientific inquiry. Procedures Clarify Goals and Establish Set Tell students that today they are going to learn how to focus a lens on a compound light microscope and how
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SYNTHESIS OF TRANS-9-(2-PHENYLETHENYL) ANTHRACENE (A WITTIG REACTION) Introduction: The purpose of this experiment is to convert carbonyl compounds to alkenes using Wittig reaction. In this case we will be synthesizing Trans-9-(2-phenylethenyl) anthracene from benzyltriphenylphosphonium chloride and 9-anthraldehyde. We will also aim to obtaining a high percent yield and purity for the synthesis of Trans-9-(2-phenylethenyl) anthracene. The mechanism for this reaction goes thus:
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Properties of life‚ Basic Chemical Terminology‚ Molecules and Compound of a cell Properties of life: All living things are made of cells and keep certain characteristics in common. All living things are divided into several characteristics: order‚ reproduction‚ growth and development‚ energy processing‚ respond to the environment‚ regulation and evolution. Cells are either made of prokaryotic or eukaryotic. Prokaryotic is simple‚ small and lacking membrane-enclosed membrane. Eukaryotic
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What chemical compounds does the human body consist of? Oxygen (65%) and hydrogen (10%) are predominantly found in water‚ which makes up about 60 percent of the body by weight. It’s practically impossible to imagine life without water. Carbon (18%) is synonymous with life. Its central role is due to the fact that it has four bonding sites that allow for the building of long‚ complex chains of molecules. Moreover‚ carbon bonds can be formed and broken with a modest amount of energy‚ allowing
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Ultrasonic Investigation on the Distorted Diamond Chain Compound Azurite P T Cong1‚ B Wolf1‚ U Tutsch1‚ K Remović-Langer1‚ J Schreuer2‚ S Süllow3‚ and M Lang1 1 Physikalisches Institut‚ Universität Frankfurt‚ SFB/TR49‚ 60438 Frankfurt(M) 2 Institut für Mineralogie‚ Ruhr- Universität‚ 44780 Bochum 3 Institut für Physik der Kondensierten Materie‚ TU Braunschweig‚ 38106 Braunschweig E-mail: cong@physik.uni-frankfurt.de Abstract
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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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