extremely hard to stop. After the first time‚ the brain wants to recreate the amazing high you felt. However‚ your brain has also become used to the effects of crystal meth‚ so to replicate that high‚ you need to take more and more. This is what causes dependence (“Why Is Crystal Meth so Addictive?”). Once somebody is addicted to crystal meth‚ the short term and long term effects can be devastating. Short-term physical effects can include violent behavior‚ mood swings‚ tremors‚ convulsions‚ increase
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husband and wife in “By the River”. Crystal Styan’s selfless and meek personality is evidently over powered by her narrow-minded spouse‚ Jim Styan. Their ambitions and desires in life are on completely different paths‚ making their marriage surprising. Every aspect involving life goals‚ care for tasks‚ and priorities differ between Crystal and Jim. The ambitions and desired lifestyles of Crystal and Jim are of two completely opposite ideas. When Crystal was younger‚ she dreamt of going “to
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Unit 4 Assessment 2-Benzoic Acid Synthesis Synthesis and Investigation of Benzoic Acid Our aims: Create benzoic acid using benzaldehyde and hydrogen peroxide. Then remove some impurities from the benzoic acid crystals. Apparatus: Titration Pipette (25 cm3) Burette (50 cm3) Retort stand Clamp Conical flask (250 cm3) Volumetric flask (250 cm3) and stopper White tile Beakers (250 cm3) Dropping pipette Filter funnel Deionised water Phenolphthalein indicator Volumetric flask
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benzil. In step three the benzil from step two was to be synthesized tetraphenylcyclopentadienone. The benzil and 1‚3-diphenylacetone were mixed with ethanol. After heating this‚ ethanoic KOH was added and the solution was left to reflux. The crystals were washed and collected. This ended the multistep synthesis. The final product was not successfully synthesized due to sources of error during procedures. Therefore‚ a percent yield was unable to be found. The theoretical melting point for
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Synthesis of Aspirin and Tylenol Kyla Wykoff Abstract Aspirin and Tylenol were synthesized by means of crystallization‚ recrystallization‚ and melting point determination. Synthesis produced significantly high percent yields for aspirin‚ however‚ produced extremely low and impure percent yields for Tylenol. A second group was also used to compare results and errors‚ in which they too were also producing extremely low percent yields of Tylenol. Therefore‚ error was based on the specific protocol
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Weight (grams) Beaker 39.1 grams Beaker + Crystals 41.9 grams Weight of Crystals (Prior to Addition of Ethanol) 2.8 grams Figure 1: This table illustrates the weight of the crystals that were formed before the ethanol was added. 2.8 grams x 5= 14 mL - This is the amount of ethanol that is needed to just dissolve the bromonitrobenzenes at 78.2oC. Weight (grams) Wet Sample of Crystals 1.40 grams Dry Sample of Crystals 0.95 grams Difference Between Wet and Dry Samples
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there would still be impurities present leading to a decreased yield in pure crystals formed. Some crystals may have been lost in the Buchner funnel or when transferring from the funnel to the beaker. Some crystals may have been lost when transferred from the filter paper to the beaker before obtaining the mass of the crystals. I may have also used too much solvent to the acenatilide leading to a smaller recovery of crystals. There may have also been impurities present in the flask used to heat the
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GB09A D16xH27cm‚crystal glass ‚good $14.00 quality ‚LEDx3W MOQ 50 0.01 100pcs GB09B D20xH35cm‚crystal glass ‚good $14.00 quality ‚LEDx3W MOQ 50 0.01 100pcs GB09C W17xH23cm‚crystal glass ‚good $14.00 quality ‚LEDx3W MOQ 50 0.01 100pcs GB09D D18XH30cm‚crystal glass ‚good $14.00 quality ‚LEDx3W MOQ 50 0.01 100pcs GB09E W16xH16cm‚ crystal glass ‚good quality ‚LEDx3W $14.00 MOQ 50 0.01 100pcs GB09-5 W40xH120cm ‚crystal glass+iron $70
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An Internship Report on Customer Satisfaction on Land Owners of Crystals Construction Company. Date of Submission: 14th August‚ 2014 An Internship Report on Customer Satisfaction on Land Owners of Crystals Construction Company Supervised By: Professor: Faisal Memon Anjuman-I-Islam’s Allan Institute of Management Studies Prepared By: Mohd Shoaib Warsi Roll No: 48 MMS 2nd Year Date of
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industry‚ first established when Swarovski provided the crystals used to make Marilyn Monroe’s gown for her rendition of ‘Happy Birthday’ to the American President * Collaborations with top costume and set designers have resulted in Swarovski crystals being featured in films including James Bond‚ ‘Ocean’s Thirteen’‚ ‘The Young Victoria’ and ‘Black Swan’‚ to name but a few. Collaborations have also ensued with the music industry and Swarovski crystals have appeared in the shows of Kylie Minogue‚ Beyoncé and
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