Introduction The purpose of this lab is to synthesize Lidocaine from 2‚6-dimethylaniline‚ using diethyl amine‚ 2-chloroacetyl chloride‚ acetic acid‚ and toluene. The Lidocaine was made by adding 2‚6-dimethylaniline to 2-chloroacetyl chloride in acetic acid. Sodium acetate is added in order to make the compound soluble. The product is dried‚ then treated with diethyl amine and toluene. This is refluxed using a water-cooled reflux condenser. The vapor is condensed by the cold water as the compound
Free Solvent Acetic acid Ethanol
u03a2 Product Analysis Vyvanse (lisdexamfetamine dimesylate) by Shire INC US Vyvanse (lisdexamfetamine dimesylate) is a schedule II narcotic medication prescribed in the United States for Attention Deficit Hyperactive Disorder (ADHD). Currently it is patented by the pharmaceutical giant Shire Inc. US‚ and the drug is in phase 3 trials for approval to treat binge eating. (Pipeline‚ n.d.) There have been rumors the drug is in trials to treat a range of diseases from schizophrenia‚ narcolepsy
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EXTRACTION Organic Chemistry Laboratory This experiment was conducted in order to compare single and multiple extraction of caffeine from dried tea leaves and to calculate the percentage yield of caffeine for both extraction procedures. The group was assigned to do the multiple extraction. Before the extraction proper‚ the water bath containing the anhydrous sodium carbonate and distilled water was heated. As the sodium carbonate dissolves‚ tea leaves were added in the mixture and allowed to
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Loggerheads also modify habitats as a result of their foraging activities. The fragments of hard-shelled organisms that loggerheads consume are either discarded or ingested and later deposited with feces at a different location. By reducing the particle size of the shells‚ loggerhead turtles contribute to nutrient recycling in benthic ecosystems by increasing the rate of shell disintegration. Additionally‚ a foraging behavior called infaunal mining has a significant effect on substrate characteristics
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language than their mother language. In the article Amy Tan’s “Mother Tongue”‚ Amy Tan emphasized her idea that we speak different languages unconsciously and we are categorized by the way we talk. The author talked about her mother who is a Chinese emigrant wanted to provide her daughter a better environment to grow up and spoke “broken” and “limited” English‚ but anyway‚ Amy can still communicate with her mother without obstacles. Throughout the story Amy Tan uses pathos and ethos to tell us that how
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THE MOST HATEFUL WORDS By Amy Tan The most hateful words I have ever said to another human being were to my mother. I was sixteen at the time. They rose from the storm in my chest and I let them fall in a fury of hailstones: "I hate you. I wish I were dead...." I waited for her to collapse‚ stricken by what I had just said. She was still standing upright‚ her chin tilted‚ her lips stretched in a crazy smile. "Okay‚ maybe I die too‚ " she said between huffs. "Then I no longer be your mother
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In the most simple form‚ FM digital synthesis consists of two sine waves. One is called the modulating wave and the other is called the carrier wave. The carrier wave is the only waveform that is audible. The modulating wave does just as it sounds‚ it modulates the amplitude of the carrier wave‚ and acts as a control value. The frequency of the modulating frequency controls the rate of change in the carrier wave; it controls how fast the modulation occurs in the carrier wave. And the amplitude of
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Despite her poor decisions when it came to health‚ relationships and behavior‚ it was Amy Winehouse’s musical originality‚ good listening skills‚ marriage and tragic death what truly made her a larger-than-life singer and songwriter. Some signs of Amy’s talent drift back to 1996 when Amy was 13 years old. She received her first guitar and thought herself how to play (Shelokhonov). Stefan Skarbek‚ a famous songwriter met Amy when she was 14‚ he said “[he] knew she was incredible – [they] didn’t even
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Amy Curry is starting a new life in Connecticut after losing her father in a car accident. Amy has since then developed a fear for driving but is left with no other choice than taking the car all the way from California to Connecticut. The handsome boy next door‚ Roger‚ joins her adventure‚ making the road trip take an unexpected turn. Exploring new states‚ making new friends and getting to know each other. The whole story takes place in Amy’s car while you follow them throughout modern America.
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The purpose of this essay is to discuss the Islamization of Persia in relation to the Samanid and Buyid Dynasties. The synthesis of Persian culture and Islam was not an immediate result of the Arab expansion into Iran and there is certainly a lack of research on the subject. However‚ in this essay‚ I will attempt to explain the contributions of the Samanid and Buyid dynasties to this synthesis with a focus on the attempts of the Samanid Dynasty at centralization and a unified identity through religion
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