SULIT 1 4541/1 Peraturan Permarkahan CHEMISTRY 4541 Kertas 1 Ogos 2011 BAHAGIAN PENGURUSAN SEKOLAH BERASRAMA PENUH DAN SEKOLAH KECEMERLANGAN KEMENTERIAN PELAJARAN MALAYSIA PERATURAN PERMARKAHAN PEPERIKSAAN PERCUBAAN SIJIL PELAJARAN MALAYSIA 2011 CHEMISTRY TRIAL 2011 MARKING SCHEME PAPER 1 4541 /1 © Trial2011 Hak Cipta Sekolah Berasrama Penuh http://cikguadura.wordpress.com SULIT SULIT 2 SKEMA KERTAS 1 CHEMISTRY 4541/1 4541/1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
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Hyundai Tiburon Project Completion Report Table of Contents Table of Figures 2 Listing of Tables 2 Executive Summary 3 Methods 5 Styling: 5 Performance: 6 Project Timeline 8 Personnel 8 Project Budget 9 Final Results 10 Table of Figures Figure 1: Stock Tiburon 4 Figure 2: Konig Tantrum Wheel 6 Figure 3: AOS CAI 6 Figure 4: SR Headers 6 Figure 5: Alpine Turbo Kit 7 Figure 6: Kumho Tires 7 Figure 7: 5 Zigen Muffler 8 Figure 8: Final Car‚ Front 10
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Analysis of Lipid through Two-Dimensional Thin Layer Chromatography Myca Pua‚ Ramon Ramos‚ Amanda Redilas‚ Kimleigh Reyes‚ Nathaniel Sim and Clara Tamondong Group 9 2F Medical Technology Biochemistry Laboratory ABSTRACT Lipids constitute a group of naturally occurring molecules that include fats‚ waxes‚ sterols‚ fat-soluble vitamins such as vitamins A‚ D‚ E‚ and K‚ monoglycerides‚ diglycerides‚ triglycerides‚ phospholipids‚ and others. In this experiment lipid was extracted from the egg yolk
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Introduction The word inflammation comes from a Latin word “Inflammare” which means “to set on fire” [1]. Inflammation is a protective response done by our body to protect itself from injury‚ foreign microorganisms as well as initiate healing and repair process. However‚ inflammation can also be potentially harmful to our body because of the chemicals involve in inflammation process which are capable to destroy and injure normal tissues. The components of inflammatory process are white blood cells
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RECRYSTALLIZATION Group Medical Technology Organic Chemistry Laboratory ABSTRACT Recrystallization is one of the simplest and most widely used technique for purifying organic solids through the differences in solubility at different temperatures. It is also the process in which the solid to be crystallized is dissolved to either a hot solvent or a hot solvent mixture and is cooled in a solution.In this experiment‚ acetanilide‚ the crude product of acetylation of aniline and acetic anhydride
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boom. In the years since‚ a number of people have begun to attack NutraSweet‚ claiming that aspartame can be broken down into three amino acid components‚ aspartate‚ phenylalanine‚ and methanol. All three can be broken down into smaller entities‚ called metabolites‚ which can be toxic. For example‚ methanol‚ or wood alcohol‚ can spontaneously become formaldehyde‚ while phenylalanine can decompose into diketopiperazine‚ which is a carcinogen. In fact‚ conspiracy theorists credit NutraSweet
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acid (CORROSIVE)‚ about 2 cm3 Propanoic acid (CORROSIVE)‚ about 2 cm3 Benzoic acid (HARMFUL)‚ about 0.2 g Concentrated sulfuric acid (CORROSIVE)‚ 5-10 drops (Note 2) Access to the following alcohols – about 10 drops of each required (Note 3): Methanol (HIGHLY FLAMMABLE‚ TOXIC) Ethanol (HIGHLY FLAMMABLE and HARMFUL if using Industrial Denatured Alcohol‚ IDA) Propan-1-ol (HIGHLY FLAMMABLE‚ IRRITANT) Butan-1-ol (HARMFUL) One or more other alcohols‚ as available‚ from: Butan-2-ol (IRRITANT)
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Experiment #9 – Identification of Aldehydes and Ketones Introduction Aldehydes and ketones share the carbonyl functional group which features carbon doubly bonded to oxygen. In the case of ketones there are two carbon atoms bonded to the carbonyl carbon and no hydrogens. In the case of aldehydes there is at least one hydrogen bonded to the carbonyl carbon; the other attachment may be to a carbon or a hydrogen. In all cases the carbon(s) that are attached to the carbonyl group may be aliphatic (not
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Hypothesis: I think that in this experiment the results of the boiling point of each sample is going be slighly different from what I found on Internet. aim: my aim is to look at what temperature and how long the following alcohol (methanol‚ I-butanol‚ Ethanol and Hexane) reach their boiling point and comparing the results that I found on internet and mine. Materials: Alcohol: Ethanol‚ I-Butanol‚ Ethanol and Hexane Four Test tubes (boiling tube) Test tubes holder Data logger Hot plates Bunsen
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-13µl ammonia is added‚ then vortex. -Complexing reagent is added (0.8ml)‚ then vortex. Solid phase extraction (SPE) MET & Cat: -Take 1ml methanol. -1ml ammonia buffer (0.2M) is added. -The sample is added. -1ml of ammonia buffer + MeOH is added. -Dry using the centrifuge at high speed for 2 to 5 mins.
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