The Synthesis of Aspirin Chemistry Standard Level Lab Report Data Collection and Processing and Conclusion and Evaluation Date: December 8th‚ 2011 Purpose: The purpose of this lab was to synthesize aspirin‚ determine the theoretical yield‚ compare the percent yield to the theoretical yield and test the purity of aspirin by adding Iron (III) chloride to the product. Hypothesis: I hypothesize that salicylic acid will react with acetic anhydride to produce acetylsalicylic acid (aspirin)
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products succumbed and at what cost? Animals are being tortured for information for the benefit of mankind. They are being kept away not only from nature but also from their families to be tormented. Animal rights groups have surfaced throughout the years‚ protecting the lives of innocent animals from experiments. Below are some facts about how experimentation on animals is torturous: “1. Over 100 million animals are burned‚ crippled‚ poisoned‚ and
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Identifying sites of protein synthesis in Chlamydomonas using erythromycin and cyclohexamide as protein synthesis inhibitors. October 16‚ 2009 Introduction: In living cells‚ prokaryotic or eukaryotic‚ the synthesis (construction) of proteins is accomplished by similar machinery. Amino acids‚ ribosomes‚ messenger RNA (mRNA)‚ and transfer RNA (tRNA)‚ are all necessary for the building of functional proteins in a cell. Ribosomes are the site of protein synthesis in a cell‚ and there are two
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the first life forms to appear on Earth‚ and are present in most habitats on the planet‚ growing in soil‚ water‚ acidic hot springs‚ radioactive waste‚ and deep in the Earth’s crust‚ as well as in organic matter and the live bodies of plants and animals‚ providing outstanding examples of mutualism in the digestive tracts of humans‚ termites and cockroaches. Bacteria are microscopic living things that were among the first creatures to inhabit the earth. They can be found almost anywhere‚ and they
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Vidallon‚ Mark Louis P. Date Performed: February 20‚ 2012 CHEM44.1 2L Date Submitted: March 12‚ 2012 MIXED-ALDOL CONDENSATION Synthesis of Cinnamaldehyde I. Introduction Cinnamaldehyde‚ cinnamic aldehyde or 3-phenyl-2-propenal is the major constituent of cinnamon oil‚ extracted from several species of Cinnamomum (C. verum‚ C. burmanii‚ C. cassia)‚ under the family Lauraceae‚ a group of evergreen trees. Cinnamon bark (particularly C. verum) yields 0.4-0.8% oil‚ which contains 60-80% cinnamaldehyde
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result in criminal charges being filed. If carried out by individuals unskilled at chemistry they could result in serious bodily harm. MDMA ("Ecstasy") is a semi-synthetic compound which can be made relatively easily from available precursors. Synthesis instructions exist which can be followed by an amateur with very little knowledge of chemistry. However‚ people with less than 2 years of college chemistry experience would probably not be capable of sucessfully synthesizing MDMA‚ and would either
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awarded jointly to Leland H. Hartwell‚ Tim Hunt and Sir Paul M. Nurse "for their discoveries of key regulators of the cell cycle". They have identified key molecules that regulate the cell cycle in all eukaryotic organisms‚ including yeasts‚ plants‚ animals and human. These fundamental discoveries have a great impact on all aspects of cell growth. Defects in cell cycle control may lead to the type of chromosome alterations seen in cancer cells. This may in the long-term open new possibilities for cancer
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different concentrations. The water potential of potato tissue will be expressed in terms of the concentration of sucrose solution. Apparatus and Materials 1 ml pipette 10 ml pipette Pipette filler Cork borer 6 boiling tubes Petri dish Blotting paper Sealing film Razor blade Ruler Stopwatch 1.0 M sucrose solution
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Sarah Khan Bivins-5th April 20th‚ 2013 Protein Synthesis Every day‚ you take in an abundance of different biomolecules; one of them being proteins. Have you ever wondered how proteins are made? They don’t just grow from a tree or fall from the sky‚ they are made through a process called protein synthesis. Protein synthesis is broken up in two two steps: transcription and translation. Transcription starts inside the nucleus when the DNA is unzipped by helicase. Following that‚ the mRNA nucleotides
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DOCUMENT CHECKLIST Certified copies of : o o o o o o Identity Card SPM/ UEC/ O-Level results STPM/UEC/A-Level/ Matriculation/ Diploma or equivalent Full Academic Transcripts (if applicable) Letter of Completion/ Certificate or Scroll Subjects synopsis for credit exemption (if applicable) What you need to BRING during Registration: (please ignore this if it has been submited or done earlier) Letter of Offer from IUKL 4 passport – sized colour photographs (blue background) Original
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