hydrocarbons Crude oil: a complex mixture of hydrocarbons found in layers of rock beneath the earth’s surface Aliphatic Hydrocarbons: contain chains of carbon atoms that may be branched Aromatic Hydrocarbons: contain Benzene rings- rings of carbon atoms with delocalized electrons Alkanes all have different boiling points dependent on the length of the carbon chain in the molecule. The smaller chains ie. the most volatile hydrocarbons will leave at the top of the column as gases because they have the lowest
Premium Hydrocarbon Petroleum Gasoline
CHM 121 ‚ UNIT: 2.0 . INTRODUCTORY AND IMPORTANCE OF ORGANIC CHEMISTRY Organic chemistry is the study of the compounds of carbon. Carbon compounds are far more numerous than those of other elements because carbon are able to bond together to form a wide range of chains and rings. The subject is named organic chemistry because living organisms are composed of carbon compounds. Organic chemistry could be regarded as the chemistry of life. Organic Chemistry is of great medical‚ economic
Premium Chemistry Chemical reaction Atom
intracellularly accumulated in the form of intracellular granules and stored in response to an environmental stress or nutrient limitation as a reserve of carbon‚ energy‚ and reducing power (Li et al.‚ 2014). Under the conditions of carbon source starvation‚ PHAs are degraded by intracellular depolymerases and subsequently metabolized as a carbon and energy sources (Singh et al.‚ 2013). Structurally‚ R-hydroxyalkonic acids act as the monomeric form of PHAs. The structure of PHAs‚ composed of 3-hydroxy
Premium Polymer Carbon Monomer
NORTHERN CARIBBEAN UNIVERSITY DEPARTMENT OF BIOLOGY‚ CHEMISTRY and ENVIRONMENTAL SCIENCE LABORATORY MANUAL Instructor: Dr. M. Wilson CHEM401: BIOCHEMISTRY for NURSES Prepared by: Oreane Collins CHEMISTRY LABORATORY REGULATIONS AND SAFETY PRECAUTIONS Reference: http://www.sciencebyjones.com/safety_rules.htm Thanks to the Flinn Scientific Safety Rules for much of the below. General Guidelines 1. Conduct yourself in a responsible manner at all times
Premium Organic chemistry Carbon Alkene
involved nucleophilic addition to a carbonyl in order to make triphenylmethanol. The final product was solidified and recrystallized and spectral data was obtained to confirm its presence. Introduction: Carbon-carbon bonds are the basis of organic chemistry. Attaching carbons and other organic molecules together we can create new molecules and carry out even more reactions to further manipulate
Premium Magnesium Oxygen Diethyl ether
daughter isotopes Metamorphism must not have taken place causing resetting of the radiometric clock The ratio of the two isotopes is constant in a living organism. When the organism dies the Carbon 14 is not replenished so the ratio of carbon 12 to carbon-14 gradually increases However the half life of carbon-14 is 5730 years and so is useful for up to about 50‚000 years old. Beyond this levels of it are so small that errors and so large as to make the measurements too uncertain. Interstellar gas
Premium Atom Oxygen Periodic table
properties of an organic molecule. There are many varieties of functional groups‚ for example; Hydroxyl (a simple group with oxygen and hydrogen bonded to one another resulting in high polarity) Carbonyl (with the presence of carbon double bonded to oxygen)‚ Carboxyl (a group with carbon double bonded to oxygen and also to a hydroxyl group)‚ and Amine (containing nitrogen bonded to what could be a variety of elements). Each of these groups provides specific properties that are vary depending on the quantity
Premium Alcohol Carbon
all functional groups in A (b) For each of the carbon X‚ Y and Z in compound A‚ determine (i) the type of hybridization (ii) the bond angle (c) A is optically active. Mark on the structure the chiral centre(s) in A. 2. (a) Draw structural formula of (i) a haloalkane with one tertiary carbon (ii) a simple alcohol with one secondary carbon (iii) a secondary amine with molecular formula C5H11N
Premium Functional group Alcohol Organic chemistry
Jovellanos‚ Bien Jindrich Johannes; Lacson‚ Danise Angelica; *Lagula‚ Nina Francesca; Lañez‚ Kristine Department of Psychology College of Science University of Santo Tomas España Manila 1015 Abstract A hydrocarbon is strictly composed of carbon and hydrogen atoms only. Five hydrocarbons were used namely hexane‚ cyclohexene‚ toluene‚ naphthalene (in hexane)‚ and the unknown (which will be known through parallel chemical tests). Three tests‚ nitration test‚ bromine test and basic oxidation
Free Benzene Hydrocarbon Carbon
illustrates the carbon cycle in nature. Write a 150-word description of this diagram for a university lecturer. © The National Center for Atmospheric Research Model Answer The diagram shows how carbon moves through various stages to form a complete cycle. This report will give a brief description of the main stages in this cycle. First‚ we can see that energy from the sun is transformed into organic carbon through a process in plants known as photosynthesis. This organic carbon is then transferred
Premium Human Carbon