Lesson 08.01: Half-life and Radioactive Decay · Distinguish between nuclear and chemical reactions. · Compare and contrast different types of nuclear decay and the properties of the three types of radiation (alpha‚ beta‚ and gamma) discussed in the lesson. · Be able to predict the isotope or radiation produced by a nuclear decay reaction when the other product is given. · Describe and make predictions regarding half-life‚ including using a graph or set of data to determine the half-life of
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neurotransmitters and hormones called catecholamines. * Catecholamine contains two chemical similarities: a core structure of catechol and a nitrogen-containing group called an amine. The catecholamines‚ in turn‚ belong to a wider group of transmitter called either monoamines (transmitters that possess one amine group) or biogenic amines * EPI – adrenergic. NE- noradrenergic * Varying amount of these substances are found within the CNS‚ PNS‚ and the inner part of the adrenal glands (adrenal medulla)
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Amphetamines What is the amphetamines? Amphetamines- A racemic sympathomimetic amine that acts as a central nervous system stimulate. It (and it’s derivatives‚ such as methamphetamine and dextroamphetamine) is a commonly abused substance‚ but has therapeutic use in the treatment of narcolepsy and attention-deficit/hyperactivity disorder. How is the amphetamines used? Therapeutic Uses: ADD/ADHD Narcolepsy Asthma or other lung disorders( stimulates bronchiole response) Weight Loss Non-therapeutic
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Introduction: Acetaminophen is a commonly used analgesic‚ which is essentially just a medicine that relieves pain (Prescott‚ 2000). Acetaminophen is created by synthesizing p-Aminophenol with Acetic anhydride. This reaction occurs when the amine group of the p-aminophenol is acetylated by the acetic anhydride. The resultant is an amide functional group (Ellis‚ 2002). However‚ the product that is obtained from this product is a crude solid which cannot be used as an analgesic and therefore the crude
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NPTEL – Chemistry – Reagents and Organic reactions Module II Lecture 14 Reduction Reactions 2.1.1 Lithium Aluminum Hydride (LAH) 2.1.1.1 Introduction Lithium aluminum hydride (LAH) is a strong reducing agent with chemical formula LiAlH4. It can reduce a variety of functional groups such as aldehydes‚ esters‚ acids‚ ketones‚ nitriles‚ epoxides and azides. It vigorously reacts with water and all the reactions are performed in polar aprotic solvents. 2.1.1.2 Preparation It was first
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molecular hydrogen‚ H2 (b) hydroxide anion‚ HO- (c) boron trifluoride‚ BF3 (d) water‚ H2O 3. Which of the following compounds is a ketone? (a) CH3CH2COOH (b) CH3CH2CHO (c) CH3CH2CH2OH (d) CH3COCH3 4. Which of the following is a primary amine? (a) CH3CH2NHCH3 (b) CH3CH2NHCH(CH3)2 (c) CH3CH2N(CH3)2 (d) (CH3)3CNH2 5. Which of the following elements has the highest electronegativity? (a) C (b) P (c) Si (d) Cl 6. Which of the following is an ionic bond? (a) F-F (b)
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COMPARATIVE INVESTIGATION OF ORGANIC COMPOUNDS Abstract Organic compunds were examined to a comparative investigation to differentiate the properties of each sample. The physical state at room temperature‚ odor and color of the sample were noted by simple observation. In terms of solubility in H2O‚ 5% NaOH solution and 5% HCl solution‚ the samples were classified as to miscible‚ slightly immiscible or immiscible for liquid; and very soluble‚ soluble‚ partially soluble or insolubse for solid. The
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can be determined using titration. In this case it will be complexometric titration against EDTA (ethylenediamine tetraacetic acid). EDTA is a hexaprotic acid‚ meaning that each of the amines nitrogen’s and each of the acid’s oxygen’s can donate one electron pair. There are four carboxylic acid groups and two amine groups‚ allowing a total of six attachments points‚ hence it being ‘hexa’protic. EDTA is a chelating agent‚ which works by ‘binding’ with metal ions‚ forming complexes.  This
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The data gathered and calculated in the experiment accurately portrayed the way the reactions would have taken place. The chloride analysis was a little bit off from other groups due to the fact that our AgCl was in clumps‚ creating less surface area‚ thus our product took longer to burn and may not have burned correctly compared to other groups; yet there are several experimental factors that could have caused us to have different results than other groups‚ i.e. different measurements for samples
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Lab 5 Acid/Base Extractions Introduction The purpose of this experiment is to separate either the organic base (amine) or organic acid (carboxylic acid) from a mixture that contains inorganic impurities (salt) by performing a liquid-liquid extraction and then taking a melting point. Key Experimental Details and Observations Our starting material‚ Compound B‚ was a fine white powder and weighed 0.535g. The final product was a shiny white sheet that resembled acrylic paint and weighed 0.109g
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