Biopolymers
... incorporated into living organisms as crystals, spikes or spines • However, its lower abundance in the lithosphere may explain carbon’s dominance ...
... incorporated into living organisms as crystals, spikes or spines • However, its lower abundance in the lithosphere may explain carbon’s dominance ...
Level 3: Organics Part I
... Chemists have grouped some together based on how they are made: Addition polymers – these link together with no byproducts. This is normally because to the breaking of a double bond Condensation polymers – these produce a by-product (normally water) when the monomers link together ...
... Chemists have grouped some together based on how they are made: Addition polymers – these link together with no byproducts. This is normally because to the breaking of a double bond Condensation polymers – these produce a by-product (normally water) when the monomers link together ...
chapter 8 part 2
... prepare tert-butyl methyl ether Why would one use Hg(OCCF3)2 instead of Hg(Oac)2 ...
... prepare tert-butyl methyl ether Why would one use Hg(OCCF3)2 instead of Hg(Oac)2 ...
Science Ch. 18 notes - Mrs. Gann`s 6th grade class
... the rest would remain on. Also the bulbs would shine more brightly than if a series circuit were used. ...
... the rest would remain on. Also the bulbs would shine more brightly than if a series circuit were used. ...
radicals
... peroxy radical (above) it transfers a hydrogen atom to produce a resonancestabilized, hindered oxygen radical, which does not react further. ...
... peroxy radical (above) it transfers a hydrogen atom to produce a resonancestabilized, hindered oxygen radical, which does not react further. ...
CONDENSATION POLYMERS
... Polyesters can also be made by co-polymerizing two different monomers together. One monomer could be a diester, for example. The other monomer could be a diol. These two molecules are ready to react together, with one molecule acting as an electrophile and the other molecule acting as the nucleophi ...
... Polyesters can also be made by co-polymerizing two different monomers together. One monomer could be a diester, for example. The other monomer could be a diol. These two molecules are ready to react together, with one molecule acting as an electrophile and the other molecule acting as the nucleophi ...
Final - Courses
... Instructions: Answer all of the following questions. Please provide as much illustration and/or explanation as possible so that I can understand how you arrived at your answer. Please provide written detail and illustrations to answer the questions as completely as possible. The exam is open book, o ...
... Instructions: Answer all of the following questions. Please provide as much illustration and/or explanation as possible so that I can understand how you arrived at your answer. Please provide written detail and illustrations to answer the questions as completely as possible. The exam is open book, o ...
Organic Dyes as Photoredox Catalysts
... The Nicewicz group recently showed that Mes–Acr+ and derivatives catalyze the direct C–H amination of electron rich arenes with nitrogen heterocyclic nucleophiles.5 The value of this method in drug design and natural product synthesis was demonstrated in the late stage derivatization of biologically ...
... The Nicewicz group recently showed that Mes–Acr+ and derivatives catalyze the direct C–H amination of electron rich arenes with nitrogen heterocyclic nucleophiles.5 The value of this method in drug design and natural product synthesis was demonstrated in the late stage derivatization of biologically ...
Oxidation of Ethanol, Esters, Polymerization, Amino
... During esterification, an acid, usually H2SO4, is added to the reaction. The concentrated H2SO4 removes water from the products and is a dehydrating agent. Esters are volatile liquids which are not ionized and they are soluble in organic solvents but not in water. They are used as solvents in perfum ...
... During esterification, an acid, usually H2SO4, is added to the reaction. The concentrated H2SO4 removes water from the products and is a dehydrating agent. Esters are volatile liquids which are not ionized and they are soluble in organic solvents but not in water. They are used as solvents in perfum ...
SCH4U Unit Test Name
... a. the smallest aldehyde has the formula HCOH b. a carbonyl carbon consists of a carbon-oxygen double bond c. in an aldehyde, the carbonyl carbon is always bonded to a hydrogen atom d. Ketones are more soluble in water than alcohols with the equivalent number of carbons ____ 17. The correct name for ...
... a. the smallest aldehyde has the formula HCOH b. a carbonyl carbon consists of a carbon-oxygen double bond c. in an aldehyde, the carbonyl carbon is always bonded to a hydrogen atom d. Ketones are more soluble in water than alcohols with the equivalent number of carbons ____ 17. The correct name for ...
amcommu 555..558 - Leibniz-Institut für Polymerforschung Dresden
... was treated with a chemical compound necessary for local surface modification, in the following called ink. For chemisorption on a gold surface, the ink molecules are terminated with a thiol group. The initiation of the polymerization requires primary amino groups at the opposite end of the molecule ...
... was treated with a chemical compound necessary for local surface modification, in the following called ink. For chemisorption on a gold surface, the ink molecules are terminated with a thiol group. The initiation of the polymerization requires primary amino groups at the opposite end of the molecule ...
5.4.2 Organic nitrogen compounds: amines, amides, amino acids
... Add about 2 mg of the sample to 1 mL of a solution of 0.2 g of ninhydrin (1,2,3indanetrione monohydrate) in 50 mL of water. The test mixture is heated to boiling for 15-20 sec; This reaction is important not only because it is a qualitative test, but also because it is the source of the absorbing ma ...
... Add about 2 mg of the sample to 1 mL of a solution of 0.2 g of ninhydrin (1,2,3indanetrione monohydrate) in 50 mL of water. The test mixture is heated to boiling for 15-20 sec; This reaction is important not only because it is a qualitative test, but also because it is the source of the absorbing ma ...
Lecture 14a - University of California, Los Angeles
... • Alkali metals dissolve in liquid ammonia with a dark blue color at low concentrations (and bronze color at high concentrations) due to solvated electrons that are trapped in a solvent cage (video) • The addition of the cyclopentadiene to this solution causes the color of the solution to disappear ...
... • Alkali metals dissolve in liquid ammonia with a dark blue color at low concentrations (and bronze color at high concentrations) due to solvated electrons that are trapped in a solvent cage (video) • The addition of the cyclopentadiene to this solution causes the color of the solution to disappear ...
7.5.1 worksheet - Digilent Learn site
... 7.5.1: Passive RC Circuit Step Response (40 points total) ...
... 7.5.1: Passive RC Circuit Step Response (40 points total) ...
Jeopardy Review (PowerPoint)
... provides 100 J of energy. What is the charge on the capacitor? Back ...
... provides 100 J of energy. What is the charge on the capacitor? Back ...
Exam 1 from 2008
... a) Identify the functional groups in amoxicillin. (I've done one for you.) b) Put an asterisk by all sp2 hybridized carbon atoms. c) Provide the approximate value for the indicated bond angle. d) Although this is the structure that is usually drawn for amoxicillin (e.g., see Wikipedia), it is not ac ...
... a) Identify the functional groups in amoxicillin. (I've done one for you.) b) Put an asterisk by all sp2 hybridized carbon atoms. c) Provide the approximate value for the indicated bond angle. d) Although this is the structure that is usually drawn for amoxicillin (e.g., see Wikipedia), it is not ac ...
Worksheet Key - UCSB C.L.A.S.
... monochlorination CH3CH2Cl dichlorination ClCH2CH2Cl or CH3CHCl2 trichlorination Cl2CHCH2Cl or CH3CCl3 tetrachlorination Cl2CHCHCl2 or ClCH2CCl3 pentachlorination Cl2CHCCl3 ...
... monochlorination CH3CH2Cl dichlorination ClCH2CH2Cl or CH3CHCl2 trichlorination Cl2CHCH2Cl or CH3CCl3 tetrachlorination Cl2CHCHCl2 or ClCH2CCl3 pentachlorination Cl2CHCCl3 ...
EXAM 2
... [10 pts.] What is the magnitude of the magnetic dipole moment of the loop? [10 pts.] What magnetic field magnitude will prevent the loop from rotating about the axle? [10 pts.] For this to happen, should the current in the loop flow clockwise or counterclockwise (as viewed from above)? Explain ...
... [10 pts.] What is the magnitude of the magnetic dipole moment of the loop? [10 pts.] What magnetic field magnitude will prevent the loop from rotating about the axle? [10 pts.] For this to happen, should the current in the loop flow clockwise or counterclockwise (as viewed from above)? Explain ...
2014 Exams
... then reacted with H2SO4, giving a white precipitate. The decantate from this precipitate is then reacted with KCN, followed by (NH4)2S (aq), which results in a yellow solid. Decantate “A” is treated with concentrated HCl, which first produces an orange precipitate, then with more HCl the solid compl ...
... then reacted with H2SO4, giving a white precipitate. The decantate from this precipitate is then reacted with KCN, followed by (NH4)2S (aq), which results in a yellow solid. Decantate “A” is treated with concentrated HCl, which first produces an orange precipitate, then with more HCl the solid compl ...
Spring 2014
... (8 pts) If it takes 4.184 J of energy to raise the temperature of exactly one gram of water one degree Celcius, how many photons from this LED are needed to raise the temperature of 250 g of water (about one cup) one degree Celcius? ...
... (8 pts) If it takes 4.184 J of energy to raise the temperature of exactly one gram of water one degree Celcius, how many photons from this LED are needed to raise the temperature of 250 g of water (about one cup) one degree Celcius? ...
Polythiophene
Polythiophenes (PTs) are polymerized thiophenes, a sulfur heterocycle. They can become conducting when electrons are added or removed from the conjugated π-orbitals via doping. The study of polythiophenes has intensified over the last three decades. The maturation of the field of conducting polymers was confirmed by the awarding of the 2000 Nobel Prize in Chemistry to Alan J. Heeger, Alan MacDiarmid, and Hideki Shirakawa ""for the discovery and development of conductive polymers"". The most notable property of these materials, electrical conductivity, results from the delocalization of electrons along the polymer backbone – hence the term ""synthetic metals"". However, conductivity is not the only interesting property resulting from electron delocalization. The optical properties of these materials respond to environmental stimuli, with dramatic color shifts in response to changes in solvent, temperature, applied potential, and binding to other molecules. Both color changes and conductivity changes are induced by the same mechanism—twisting of the polymer backbone, disrupting conjugation—making conjugated polymers attractive as sensors that can provide a range of optical and electronic responses.A number of comprehensive reviews have been published on PTs, the earliest dating from 1981. Schopf and Koßmehl published a comprehensive review of the literature published between 1990 and 1994. Roncali surveyed electrochemical synthesis in 1992, and the electronic properties of substituted PTs in 1997. McCullough's 1998 review focussed on chemical synthesis of conducting PTs. A general review of conjugated polymers from the 1990s was conducted by Reddinger and Reynolds in 1999. Finally, Swager et al. examined conjugated-polymer-based chemical sensors in 2000. These reviews are an excellent guide to the highlights of the primary PT literature from the last two decades.