Properties of Substances- Gr.12 Chemistry Final Lab Report Lab: Properties of Substances M. Nguyen SCH4U April 27‚ 2012 Abstract The purpose of this experiment was to use a variety of tests to identity the type of bonds which are present in each solid. Various substances (paraffin wax‚ sucrose‚ sodium chloride‚ tin‚ and silicon dioxide) were experimented and identified with tests for hardness‚ solubility‚ conductivity‚ and the time for the solid to melt with a candle and Bunsen burner
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| Separation of Nitrophenols | | | | Abstract: Using a micro scale steam distillation we separated ortho and para-nitrophenol from a mixture that was already made. After the para and ortho were separated we measured their melting points and compared it to the literature values for purity. For ortho-nitrophenol we had 60% recovery and for para 160% recovery. Our melting point ranges were ortho: 45-46°C and para 64-95°C. Introduction: Nitration: In phenols‚ -OH group strongly
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Amino acids are the building blocks of proteins. Amino acids bind together to form polypeptide chains‚ and these polypeptides fold and coil together into specific conformations to form proteins. There are 20 different amino acids‚ each amino acid consisting of four distinct partners. The first is a carboxyl group. A carboxyl group has very weak acids that are able to donate hydrogen ions to biological reactions. The second partner is the amino acid group. Amino acid groups act as the base which‚
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Ammonia and Hydrochloric Acid Lab Chemistry 1 Abstract The straw should be cut shorter to 8 cm in order to make the solid ring appear in the center of the straw. We achieved our goal‚ cutting the straw caused the gases to not have to go as far‚ and meet in the middle. Background The particles in a gas are very loose and tend to move around a lot very quickly. The particles in a solid are very compact and vibrate but don’t really move very much. The particles in a liquid however are more
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Substance abuse is a growing problem that not only affects the person who is abusing alcohol or drugs but affects the lives of those who are close to the abuser. Substance abuse is the abuse of any substance. A drug is a substance that modifies one or more of the body’s functions when it is consumed. Everything from over-the-counter pain medication‚ to opiates‚ prescription drugs such as Oxycontin‚ alcohol‚ cocaine‚ heroin and even coffee can be abused in one way or another. The two main substances
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Effects of substance abuse Substance abuse can simply be defined as a pattern of harmful use of any substance for mood-altering purposes. Medline ’s medical encyclopedia defines drug abuse as "the use of illicit drugs or the abuse of prescription or over-the-counter drugs for purposes other than those for which they are indicated or in a manner or in quantities other than directed." Generally‚ when most people talk about substance abuse‚ they are referring to the use of illegal drugs. Most
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Substance Abuse The sociocultural theory‚ the behavioral/cognitive theory and the biological theory are all Viewpoints with which I agree. These viewpoints all share certain elements. The sociocultural theory holds that substance abuse results from stress and environmental factors. In situations where low socioeconomics and unemployment are evident‚ drugs are commonly used as a means of relief from stress. The behavioral/cognitive viewpoint sees the situational substance
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Substance Abuse KHP 230: Human Health and Wellness 1-27-2015 BY: Katelyn McGraw Everyday there are more and more young people using drugs and drinking alcohol. These numbers have increased dramatically. This could cause things to be more dangerous for other people. I know that there are many reasons why are youth are want to try these things. They do it because they might be bored. Others think it makes them seem older. Some are just silly enough to think that their reputation is at stake
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Substance abuse- Inhalants The term substance refers to chemical compound that are ingested in order to alter mood or behavior. Substance use: It is the ingestion of psycho active substance (which alters mood or behavior) in moderate amount that does not significantly interfere with social‚ educational or occupational functioning. Eg: Drinking a cup of coffee in the morning in order to wake up. Substance intoxication: It means our physiological reaction to ingested substances that is getting high
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EXERCISE 11 Synthesis of Aspirin (Acetylsalicylic Acid from Salicylic Acid) RAQUID‚ Rency J Group 5 18L I. Introduction Due to the demand of certain reagents in the laboratory in order to perform and conduct further experiments or produce essential compounds‚ chemists continuously develop organic synthesis. This process aims to prepare and synthesize desired organic compounds from commercially or readily available ones by providing the simplest route in synthesizing the compound
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