the unknown component of Panacetin. Theory: Panacetin is an analgesic (pain reducing) and antipyretic (fever reducing) drug that is sold in drug stores. However‚ there is a suspicion that this bottle may be counterfeit‚ not containing the chemicals that it should. Panacetin should be made up of about 50 percent of the unknown component that we previously separated out of Panacetin for testing. We suspect that this unknown compound is either acetanilide or phenacetin‚ both of which can be
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finding out things we do not know. Most materials in our world are mixtures. Very few materials are pure substances. The art of separating mixtures is important because it enables us to isolate pure substances. Mixtures are either homogeneous or heterogeneous. To separate a mixture there is not only one‚ but several different methods used. A mixture is a physical blend of two or more substances. An important characteristic of mixtures is that their composition may change. There are two types of mixtures
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rabbits‚ rats‚ monkeys‚ and other animals die in lethal dose tests performed in many states around the United States. During a lethal dose test‚ the experimental substance is forced into the animals throats‚ or is pumped into their stomaches by a tube sometimes causing death by stomach rupture or from the sheer bulk of a chemical dosage. Substances are mixed in lab chows‚ injected under the skin‚ into a vein‚ or into the lining of the abdomen‚ they are often applied to the eyes‚ rectum‚ and vagina or forcebilly
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Chapter 6: Chemical Bonds Section 6.1: Ionic Bonding Chemical bond: the force that holds atoms of elements and ions together to become a stable‚ new substance called a compound. -the number of valence electrons determines if an atom will form a chemical bond. -metals tend to give up electrons to other atoms. -nonmetals tend to take electrons from other atoms. -noble gases will not form a chemical bond because these atoms already have a full outer shell of energy. Ionization: the
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classify matter. (Homogeneous‚ Heterogeneous‚ Mixture‚ Pure Substance)? HOMOGENEOUS Matter that is made up of the same or alike particles Can’t see what makes it up Looks uniform HETEROGENEOUS Matter that is made up of different types of particles Can see what makes it up Mixture A material made up of two or more substances that can be easily separated Either Heterogeneous or Homogeneous Ex: Salsa‚ Cake batter‚ pizza‚ soda Pure Substance Classification of matter with a fixed composition Only
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INTRODUCTION: This lab was based on the separation of the components of a mixture. A mixture can be defined as a physical combination of two or more pure substances. Separation techniques are used to separate components that are not chemically combined. All of these techniques involve changes in the physical state of a chemical compound rather than chemical changes. The three objectives in this lab were 1. Learn the different separation techniques which include; sublimation‚ extraction‚ decantation
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abused in the development of this drug. Which raises the question of the legality of this drug? Reports and studies have shown that this synthetic cannabinoid has extreme side effects with a possibility of life altering long term effects. Since the chemical compound is so new the possible long term effects can not be announced. People are starting to use JWH-018‚ which is also referred to as Spice‚ K2‚ or incense. I’m sure that there are many reasons as to why people are choosing this new drug.
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Chapter 2 The Chemical Context of Life PowerPoint Lectures for Biology‚ Seventh Edition Neil Campbell and Jane Reece Copyright © 2005 Pearson Education‚ Inc. publishing as Benjamin Cummings • Overview: Chemical Foundations of Biology Copyright © 2005 Pearson Education‚ Inc. publishing as Benjamin Cummings • The bombardier beetle uses chemistry to defend itself Figure 2.1 Copyright © 2005 Pearson Education‚ Inc. publishing as Benjamin Cummings • Concept 2.1: Matter consists
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chromatography/mass spectrometry is used to test hair and urine samples of possible drug abusers or job applicants‚ and it is the best method for the testing of drug use. Gas chromatography and mass spectrometry are two different methods for identifying chemical substances‚ and the two instruments have be coupled together to perform a highly complementary analytical function. The gas chromatograph and the mass spectrometer have theories behind how their techniques work‚ and specific forensic applications for their
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drugs that the substance is likely to be. These types of tests are useful when they provide positive results and when they provide negative results‚ since the forensic scientist can then rule out certain types of drugs from the possibilities. 3.) Color tests involve introducing a chemical reagent to the drug and observing whether or not the material changes color. They are used to determine whether a drug is present at the scene. 4.) Microcrystalline tests involve exposing the substance to a reagent
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