The Branch Davidian Compound was established as living-worship center for the members of the sect to reside. The residents of the compound lived‚ worked‚ learned‚ and worshipped in the isolated community. Because of the nature of the isolation and basis of the belief system of the Branch Davidian church created a unique way of life for the residents. Life in the compound was mostly dictated by David Koresh because he was a self-proclaimed messiah (equip.org) in which the members followed. Because
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EXPERIMENT 1 IDENTIFICATION OF UNKNOWN COMPOUNDS Date of experiment : 7th August 2012 Venue: ME204 INTRODUCTION Chemical reactions are regularly categorized into 3 types: oxidation-reduction (redox reaction)‚ precipitation (double displacement) and acid-base reaction (double displacement) Type 1: Oxidation-Reduction Reactions Oxidation-reduction processes include the movements of electrons form oxidants to reductants‚ which lead to increases in oxidation
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Compound 50‚ like its known analogue 3‚ involves an α‚β-unsaturated ketone‚ an acid-sensitive reactant‚ which prevents its direct synthesis in presence of protic solvents by refluxing. Despite of this characteristic‚ 50 was formed smoothly in 5 minutes by grinding chemistry‚ solely as E-isomer‚ without any evidence of decomposition after 1H and 13C MNR analysis. This synthetic approach provides easy access to such α‚β-unsaturated N-acylhydrazones‚ which are building blocks in the synthesis of nitrogen-containing
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13.1 Compound Interest • Simple interest – interest is paid only on the principal • Compound interest – interest is paid on both principal and interest‚ compounded at regular intervals • Example: a $1000 principal paying 10% simple interest after 3 years pays .1 3 $1000 = $300 If interest is compounded annually‚ it pays .1 $1000 = $100 the first year‚ .1 $1100 = $110 the second year and .1 $1210 = $121 the third year totaling $100 + $110 + $121 = $331 interest 13.1 Compound Interest Period
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Identification of a Copper Compound by Percent Mass Unknown Compound: #9 Abstract: The objective of this experiment was to identify the unknown pure copper salt compound of #9. To do this‚ the mass of copper in the unknown was calculated and then divided by the mass of the whole compound to get the percent copper. The molecular weight was also calculated by dividing mass of copper compound used by moles of compound in unknown sample. The percent copper averaged out to 31.6% while the molecular
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Date Performed: November 18‚ 2010 2009 – 14077 Ma’am Rea Abuan Experiment # 1 SOLUBILITY OF ORGANIC COMPOUNDS State what types of intermolecular forces are present in solutions formed due to intermolecular attractions between the solute and the solvent. Compound 1 Compound 2 Intermolecular Forces Class S (Water-soluble) Compounds Acetone Water Hydrogen Bonding & London Dispersion Forces Diethyl Ether Dipole – Induced Dipole & London Dispersion Forces
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Chromatography • • • Separation based on polarity of compounds Two potential phases for a compound to exist in: mobile and stationary Partitioning of compounds between mobile phase and stationary phase occurs: o Compounds that are less polar move more in the mobile phase‚ those that are more polar “stick” more on the stationary phase o These polarity differences cause compounds move at different rates and therefore can be separated 1. Mobile Phase: the phase the moves; can be gas or
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situations in the play. These characteristics combined make an impacting and memorable part of the book. One of these is in Book 11‚ lines 233-256. I noted this part because of its strong use of poetic language‚ and the many literary elements in it that make it a very striking few stanzas. Firstly‚ the part I chose was when Odysseus went to the Kingdom of the Dead and met his mother. There was a quite a lot of repetition when Odysseus described the time when he wanted to hold
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Name Class Date [pic] Compound Inequalities 3-6 Reteaching A compound inequality with the word or means one or both inequalities must be true. The graph of the compound inequality a < –4 or a ≥ 3 is shown below. [pic] A compound inequality with the word and means both inequalities must be true. The graph of the compound inequality b ≤ 4 and b > –1 is shown below. [pic] To solve a compound inequality‚ solve the simple inequalities from which it is made. [pic] Problem
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LU 1 - Tutorial 1. Write the formulas for the following compounds: Compound Copper (II) chloride Iron(II) sulphate Sodium sulphate Ammonium nitrate Sodium nitrite Potassium sulphate Magnesium phosphate Formula Compound Lithium acetate Manganese (IV) nitrate Potassium permanganate Iron (III) oxide Potassium sulphite Potassium hydrogen carbonate Sodium iodate Formula 2. Express the following numbers in scientific notation: a) 0.000000027 b) 356 c) 47 764 d) 0.096 3. Express the following numbers
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