Chromatography The Atomic Structure Atoms contain electrons which travel along electron shells‚ surrounding the nucleus that contains nucleons such as protons and neutrons. Electrons‚ neutrons and protons all make up an atom‚ they are called sub-atomic particles. Protons – has a relative charge of 1+ and a relative atomic mass of 1 Neutrons – are neutral‚ therefore the charge is 0. Also has a R.A.M of 1 Electrons – has a negative charge (1- )‚ and has a R
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What is the project about: Students learn about gas and chemical reactions by discovering how to inflate a balloon using baking soda and vinegar. Also to be able to contest whether baking soda and vinegar alone will inflate a balloon faster than baking soda and vinegar with lemon juice. Question:Will Baking Soda and Vinegar or Baking Soda and Vinegar with lemon juice‚ blow up the balloon faster? hypothesis:I think that the baking soda and vinegar alone will blow up the balloon faster than the Baking
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Cellular Respiration  Cellular respiration is the process of oxidizing food molecules‚ like glucose‚ to carbon dioxide and water. C6H12O6 + 6O2 + 6H2O → 12H2O + 6 CO2 The energy released is trapped in the form of ATP for use by all the energy-consuming activities of the cell. The process occurs in two phases: glycolysis‚ the breakdown of glucose to pyruvic acid the complete oxidation of pyruvic acid to carbon dioxide and water In eukaryotes‚ glycolysis occurs in the cytosol. (Link to
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In this experiment the objective was to perform a Diels-Alder reaction using cyclopentadiene and maleic anhydride to synthesize the product‚ cis-Norbornene-5‚6-endo-dicarboxylic anhydride. The Diels-Alder reaction is one of the most important reactions in organic chemistry and was first investigated by Otto Diels and Kurt Alder in Germany. It is a [4+2] concerted cycloaddition reaction which involves a diene and a dienophile. The Diel-Alder reaction are mainly used for creating new carbon-carbon
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flask with 0.93 g of unknown to dissolve it. After reaching room temperature‚ the flask was placed into a bucket with ice and DI H2O. The unknown was collected by vacuum filtration‚ rinsed with ice water‚ and dried to constant mass at 0.72 g. 13C NMR (100.13 MHz‚ acetone-D6): σ 15.5 (s‚ Me)‚ 24.3 (s‚ Me)‚ 29.9 (s‚ Me)‚ 30.1 (s‚ Me)‚ 30.3 (s‚ Me)‚ 30.5 (s‚ Me)‚ 30.7 (s‚ Me)‚ 30.9 (s‚ Me)‚ 31.1 (s‚ Me)‚ 64.7 (s‚ Me)‚ 115.7 (s‚ C=C)‚ 122.5 (s‚ C=C)‚ 133.5 (s‚ C=C)‚ 156.4 (s‚ C=O)‚ 170.8 (s‚ C=O)‚ 210
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Enzyme Report Case 1 - Hereditary Fructose Intolerance 1 & 2. Enzymes take on a variety of roles in the human body at the cellular level. Specifically‚ they aid in the breakdown of macronutrients such as glucose and fructose so that the body can use them. Although reactions within the body would occur without enzymes‚ enzymes provide control because the reaction is not needed all of the time. Enzymes function in specific environments such as temperature or pH; some enzymes are specific
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a) I definately agree with this statement and how science is ever changing. The scientific method begins by asking a question about something. After asking a question the next step is to form a hypothesis or educated guess. A repeatable expieriment is then created to test said hypothesis‚ and a large amount of data is collected. Data collection then leads Scientits to analyze the data and come up with a conclusion to see if the hypothesis was proven correct or incoreect. If the hypothesis is proven
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Index Sl. No. Topic Page No. 1. Introduction 3 2. The LHC 4 3. Design 5 4. Cyclotron 7 5. Mathematics 8 6. Practical Applications 9 7. Conclusion 13 8. Acknowledgement 14 9. Bibliography 14 “The beauty of living things is the atoms that go into it‚ but the way those atoms are put together.” -Carl Sagan Introduction If‚ in some cataclysm‚ all of scientific knowledge was to be destroyed‚ and
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GENERAL CHEMISTRY September 2011 GENERAL CHEMISTRY September 2011 ISOTOPES Atoms of a given element which have the same number of protons but different numbers of neutrons are called isotopes. Thus‚ isotopes have the same position in the periodic table‚ the same chemical properties and the same atomic charge. The simplest example of an atom with different isotopes is hydrogen. The three isotopes of hydrogen are shown here: The increasing number of neutrons in the nucleus of the hydrogen
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Allelopathic activity of the aqueous methanol extracts of Mangifera indica L. leaves The aqueous methanol extracts obtained from mango leaves inhibited seed germination of radish and sand fescue‚ and inhibited seedling growth of root and shoot growth of radish‚ rapeseed‚ sand fescue and crabgrass (Figure 1 and 2). The extract obtained from 0.03 g dry weight of mango leaves inhibited 20 and 50 % germination of radish and sand fescue respectively‚ on day 4 (Figure 2). The extract obtained from 0.03
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