C 2 H 5 OH(l)
... It may be surprising that water needs such vigorous conditions to react with ethene. It is a highly polar molecule and you would expect it to be a good electrophile. ...
... It may be surprising that water needs such vigorous conditions to react with ethene. It is a highly polar molecule and you would expect it to be a good electrophile. ...
2 - Scheikundeolympiade
... A and B are white crystalline substances. Both are highly soluble in water and can be moderately heated (up to 200 °C) without change but both decompose at higher temperatures. If an aqueous solution of 20.00 g A (which is slightly basic, pH ≈ 8.5-9) is added to an aqueous solution of 11.52 g B (whi ...
... A and B are white crystalline substances. Both are highly soluble in water and can be moderately heated (up to 200 °C) without change but both decompose at higher temperatures. If an aqueous solution of 20.00 g A (which is slightly basic, pH ≈ 8.5-9) is added to an aqueous solution of 11.52 g B (whi ...
EE3954 Microprocessors and Microcontrollers Assignment #3
... that can be used without damaging the output driver transistor. Note that you have to account for VOL in this case. ( 5 – 1.4 – 0.6 )Vdc / 0.025 A = 120 ohm ...
... that can be used without damaging the output driver transistor. Note that you have to account for VOL in this case. ( 5 – 1.4 – 0.6 )Vdc / 0.025 A = 120 ohm ...
Water Conductivity – A Review - Sublimation Science: Lyophilization
... Friedrich Kohlrausch (1840-1910) was able to show that if one extrapolated the molar conductivity to a measurement at infinite dilution, the following expression was true, where the superscript indicates extrapolated values. This is called the law of independent migration of ions. In this expression ...
... Friedrich Kohlrausch (1840-1910) was able to show that if one extrapolated the molar conductivity to a measurement at infinite dilution, the following expression was true, where the superscript indicates extrapolated values. This is called the law of independent migration of ions. In this expression ...
FREE RADICAL REACTIONS IN ORGANIC SYNTHESIS
... • Note - we are nolonger looking at proton removal but hydrogen abstraction (it still has its 1 e–) hydrogen abstraction ...
... • Note - we are nolonger looking at proton removal but hydrogen abstraction (it still has its 1 e–) hydrogen abstraction ...
Alternative Capacitor Platforms to Solid MnO2 Tantalums for
... • Key attributes to consider for Decoupling – Capacitance effects from • Frequency • Voltage • Temperature ...
... • Key attributes to consider for Decoupling – Capacitance effects from • Frequency • Voltage • Temperature ...
Powerpoint: Reaction pathways
... It may be surprising that water needs such vigorous conditions to react with ethene. It is a highly polar molecule and you would expect it to be a good electrophile. ...
... It may be surprising that water needs such vigorous conditions to react with ethene. It is a highly polar molecule and you would expect it to be a good electrophile. ...
m4 organic reaction pathways
... It may be surprising that water needs such vigorous conditions to react with ethene. It is a highly polar molecule and you would expect it to be a good electrophile. ...
... It may be surprising that water needs such vigorous conditions to react with ethene. It is a highly polar molecule and you would expect it to be a good electrophile. ...
Lecture
... At room temperature, thiophene is a colorless liquid with a mildly pleasant odor reminiscent of benzene, with which thiophene shares some similarities. Like benzene, thiophene forms an azeotrope with water. Furan is typically derived by the thermal decomposition of pentose-containing materials, cell ...
... At room temperature, thiophene is a colorless liquid with a mildly pleasant odor reminiscent of benzene, with which thiophene shares some similarities. Like benzene, thiophene forms an azeotrope with water. Furan is typically derived by the thermal decomposition of pentose-containing materials, cell ...
EFFECT OF LEWIS ACID IN TiCl4/MgCl2/THF/AlCl3 CATALYST
... (Mx refer to Ca, Fe and Zn) Figure 2 shows the absorption bands of THF examined by FT-IR technique. In general, a From our previous research, the XRD patterns of the symmetrical and an asymmetrical C-O-C stretching TiCl4/MgCl2/THF system shows peak of the band of THF is around 913 cm-1 and 1071 cm-1 ...
... (Mx refer to Ca, Fe and Zn) Figure 2 shows the absorption bands of THF examined by FT-IR technique. In general, a From our previous research, the XRD patterns of the symmetrical and an asymmetrical C-O-C stretching TiCl4/MgCl2/THF system shows peak of the band of THF is around 913 cm-1 and 1071 cm-1 ...
AS Self Study Unit - Uses of Alkenes
... be able to draw the structures of E and Z isomers understand that E-Z isomers exist due to restricted rotation about the C=C bond understand that the double bond in an alkene is a centre of high electron density understand the mechanism of electrophilic addition of alkenes with HBr, H2SO4 and Br2 kn ...
... be able to draw the structures of E and Z isomers understand that E-Z isomers exist due to restricted rotation about the C=C bond understand that the double bond in an alkene is a centre of high electron density understand the mechanism of electrophilic addition of alkenes with HBr, H2SO4 and Br2 kn ...
PRODUCTION OF MATERIALS SAMPLE
... There is also a need to find alternative sources of fuel, since the current use of crude oil is environmentally damaging and causes large emissions of greenhouse gases, contributing to global warming. Many of the polymers produced by the petrochemical industry from crude oil are NOT biodegradabl ...
... There is also a need to find alternative sources of fuel, since the current use of crude oil is environmentally damaging and causes large emissions of greenhouse gases, contributing to global warming. Many of the polymers produced by the petrochemical industry from crude oil are NOT biodegradabl ...
Tue., Feb. 5 - Ion counters and conductivity meters
... A set of answers to the questions on the first homework assignment was handed out in class (the graded assignments were returned last Thursday). We spent the entire class examining ion counters and conductivity meters. A crude and quickly assembled instrument was demonstrated in class. Ion counters ...
... A set of answers to the questions on the first homework assignment was handed out in class (the graded assignments were returned last Thursday). We spent the entire class examining ion counters and conductivity meters. A crude and quickly assembled instrument was demonstrated in class. Ion counters ...
US06CICV02 Unit -3 Dr. N. K. Patel Natubhai V. Patel College of
... products are purified and separated by a sequence similar to that used for methyl chloride and methylene dichloride, except that any product less chlorinated than chloroform is recycled. Desired quantities of chloroform are removed by distillation and the remaining material chlorinated in a third re ...
... products are purified and separated by a sequence similar to that used for methyl chloride and methylene dichloride, except that any product less chlorinated than chloroform is recycled. Desired quantities of chloroform are removed by distillation and the remaining material chlorinated in a third re ...
Asymmetric (stereoselective) synthesis
... • Chiral derivatising agents for NMR – The one most commonly used is MTPA or Mosher’s acid ...
... • Chiral derivatising agents for NMR – The one most commonly used is MTPA or Mosher’s acid ...
Exam 3b-2009
... 25. The following disaccharide has an α-1,4’ linkage with both saccharides being L-. ...
... 25. The following disaccharide has an α-1,4’ linkage with both saccharides being L-. ...
Electricity Web Review File
... 12. Differences in ____________________ cause charge to flow. 13. A battery uses ____________________ energy to move charges. 14. Fuses protect a circuit from too much current by creating a break in the circuit but must be replaced. A device that may be reset while providing the same protection is a ...
... 12. Differences in ____________________ cause charge to flow. 13. A battery uses ____________________ energy to move charges. 14. Fuses protect a circuit from too much current by creating a break in the circuit but must be replaced. A device that may be reset while providing the same protection is a ...
Substitution Rxns
... Combustion Ethanol is already partially oxidized, so it releases less energy than burning and alkane of comparable mass. However, it can be obtained by the fermentation of biomass; thus, in some countries it is mixed with gasoline to produce “gasohol” which decreases ...
... Combustion Ethanol is already partially oxidized, so it releases less energy than burning and alkane of comparable mass. However, it can be obtained by the fermentation of biomass; thus, in some countries it is mixed with gasoline to produce “gasohol” which decreases ...
Chapter 22 Organic Chemistry
... each of these reactions also gives one mole of water as a product, they are sometimes called condensation reactions. Some students have trouble spotting and naming esters. They see them and name them as a ketone next to an ether. They are not! They are esters, and they behave differently, so we name ...
... each of these reactions also gives one mole of water as a product, they are sometimes called condensation reactions. Some students have trouble spotting and naming esters. They see them and name them as a ketone next to an ether. They are not! They are esters, and they behave differently, so we name ...
THE CARBON-CARBON DOUBLE BOND
... Notes: (1) A primary amide is an amide unsubstituted on the amide nitrogen - amides with alkyl or other substituents on N cannot be dehydrated. (2) SOCl2 is thionyl chloride and POCl3 is phosphorus oxychloride. Both are powerful dehydrating agents. Reactivity of Nitriles: ...
... Notes: (1) A primary amide is an amide unsubstituted on the amide nitrogen - amides with alkyl or other substituents on N cannot be dehydrated. (2) SOCl2 is thionyl chloride and POCl3 is phosphorus oxychloride. Both are powerful dehydrating agents. Reactivity of Nitriles: ...
Solution
... appears as the energy dissipated in the resistor. In fact, the loss of the potential energy mgh = mgvt = (0.23kg)(9.8m/s2 )(4.0m/s)(0.20s) = 1.8 J which agrees with the value obtained in part (c). ...
... appears as the energy dissipated in the resistor. In fact, the loss of the potential energy mgh = mgvt = (0.23kg)(9.8m/s2 )(4.0m/s)(0.20s) = 1.8 J which agrees with the value obtained in part (c). ...
Template-Directed Synthesis of Structurally Defined Branched
... biodegradable polypeptide backbones for hydrogel formation,30 and poly(peptide) nucleic acid amphiphiles for nanoparticle formation.31 These synthetic strategies, however, do not allow for precise control over branch placement, grafting density, and chain uniformity. In a related approach, a handful ...
... biodegradable polypeptide backbones for hydrogel formation,30 and poly(peptide) nucleic acid amphiphiles for nanoparticle formation.31 These synthetic strategies, however, do not allow for precise control over branch placement, grafting density, and chain uniformity. In a related approach, a handful ...
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.