flame No presence of Halogen Silver Nitrate Test Heat + AgNO3 No white precipitate No presence of Halogen Test for Sulfur Diluted Acetic Acid + Lead Acetate + Heat No brown precipitate formed No presence of Sulfur Table 6.5Qualitative Tests for Functional Group Test for Alcohol: Chromic Acid Test Sample Treatment Observation Inference Unknown Sample 5% K2CrO7 + 5% H2SO4 + Heat No color change Not an alcohol Test for Tertiary Alcohol: Lucas Test Sample Treatment Observation Inference Unknown
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alkanes have lower boiling point than the straight chain alkanes because the branched alkane have a shorter chain length‚ which makes it pack not as close as straight alkane. For ether‚ it has one oxygen; there are polar bonds. However‚ since the functional group is R-O-R’‚for oxygen the VSEPER shape is linear so that the polarity canceled out. The compound is still non-polar‚ and there is only dispersion force. Ether has higher boiling point than alkane‚ alkene and alkyne because oxygen has higher
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DATA: A collection of known facts and figures. May contain text‚ numbers‚ images‚ sounds or videos etc. It doesn’t convey useful information METADATA: Data about data (describes prop and char of other data) INFORMATION: 1. Processed form of data is called Information 2. Processed data to increase knowledge of user e.g Name‚ Ages Older than 30 * Bit: Smallest unit of data; binary digit (0‚1) * Byte: Group of bits that represents a single character * Field: Group of words
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Identification of an Unknown Organic Compound The objective of this lab was straightforward. We were given an unknown compound and we were to perform an IR spectroscopy and as well as NMR spectroscopy. With the IR spectroscopy‚ I was able to name the functional groups I have on my compound and further confirmed my assumptions by looking at the NMR spectroscopy after. The unknown number I was given was number 203. The molecular weight of the compound was 121. From the molecular weight‚ I calculated the
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General Features of Oxidative Additions Oxidative addition reactions usually involve a coordinatively unsaturated 16-electron metal complex or five-coordinate 18-electron species‚ and take the general from: [pic] If the A and B ligands in the product are considered to be formally –1‚ then the metal center has increased its oxidation state by +2‚ and this is the origin of the name oxidative addition. Oxidative reaction can occur when a metal complex
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Electrophilic Aromatic Iodination of Vanillin Purpose: The purpose of this laboratory experiment is for an aromatic compound to undergo an electrophilic substitution reaction. To carry this out‚ our method combines sodium iodide and common bleach as the oxidizing agent in aqueous alcohol as the solvent. Balanced Chemical Equations: Physical Properties: Name of Chemical Chemical Structure Molar Mass (g/mol) BP/MP (ºC) Density (g/mL) Mass/Vol. Used Purpose 3-methoxy-4-hydroxybenzaldehye
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Synthesis and Isolation of Expectorant Guaifenesin By: Ben DuBose Dr. Cossey 3361L Abstract The purpose of this experiment was to isolate and synthesize Guaifenesin. Isolation was performed with the use of two Guai-Aid Tablets‚ each of which contained 400mg of pure Guaifenesin. Reflux‚ a technique used to heat a mixture without evaporating the solution‚ was used to synthesize Guaifenesin through a Williamson Ether Synthesis reaction with an SN2 mechanism. Introduction
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The carcinogenic nature of N-nitrosamines depends on the organs. For example‚ their targets for cancer in rodents include thyroid‚ pancreas‚ urinary bladder‚ trachea‚ lung‚ oral and nasal cavities‚ esophagus‚ kidney and liver. With respect to N-nitrosamides‚ skin‚ bone‚ peripheral nervous system‚ brain‚ small intestine and glandular stomach are targeted organs for cancers. Besides cancer‚ acute myelocytic leukemia and T and B cell lymphoma have also been triggered by N-nitrosamides. In table 8.1
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ETHERS Classification of Ethers: Symmetrical ethers – two groups attached to O are identical Ex. CH3CH2OCH2CH3 – diethyl ether Unsymmetrical ethers – two groups attached to O are not identical Ex. CH3CH2OCH3 – ethyl methyl ether Physical Properties of Ethers: Ethers have much lower boiling points compared to alcohols of comparable MWs. BPs of ethers increases with increasing MW. BPs of isomeric ethers increase with increasing alkyl chain length. BPs of ethers are about the
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Synthesis of DEET Abstract: For this experiment m-toluic acid was reacted with thionyl chloride resulting in a nucleophilic acyl substitution which could then be used to create DEET with excess diethyl amine (Figure 1). This was done by adding diethyl amine drop wise using a seperatory funnel which resulted in a gas formation which was controlled with a condenser attached to a gas vacuum. The resulting mixture was then washed to remove excess acids and bases and rotovapped. DEET was synthesized
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