Ch. 20 - Chemical Bonds - Study Guide
... c. They have a slightly positive end and a slightly negative end. d. They contain at least two hydrogen atoms. ____ 38. What is the name of a binary compound made up of lithium and chlorine? a. chlorine lithium c. lithium chloride b. lithium chlorate d. chlorine lithiate ____ 39. How many electrons ...
... c. They have a slightly positive end and a slightly negative end. d. They contain at least two hydrogen atoms. ____ 38. What is the name of a binary compound made up of lithium and chlorine? a. chlorine lithium c. lithium chloride b. lithium chlorate d. chlorine lithiate ____ 39. How many electrons ...
2014/2 ENGINEERING DEPARTMENTS PHYSICS 2 RECITATION 7
... connecting strip at the right form a conducting loop. The rod has resistance R 0.4 ; the rest of the loop has negligible resistance. A current I 100 A through the long straight wire at distance a 10 mm from the loop sets up a (nonuniform) magnetic field throu ...
... connecting strip at the right form a conducting loop. The rod has resistance R 0.4 ; the rest of the loop has negligible resistance. A current I 100 A through the long straight wire at distance a 10 mm from the loop sets up a (nonuniform) magnetic field throu ...
Stoich chem reactions practice Answer Section
... ____ 30. A chemist interested in the efficiency of a chemical reaction would calculate the a. mole ratio. c. percent yield. b. energy released. d. rate of reaction. Short Answer 31. When a glass blower shapes molten glass into an ornament, does a chemical reaction occur? Explain. ...
... ____ 30. A chemist interested in the efficiency of a chemical reaction would calculate the a. mole ratio. c. percent yield. b. energy released. d. rate of reaction. Short Answer 31. When a glass blower shapes molten glass into an ornament, does a chemical reaction occur? Explain. ...
Final Exam
... ____ 27. The osmotic pressure of blood is 7.65 atm at 37 C. What mass of glucose (C6H12O6, molar mass = 180.2 g/mol) is needed to prepare 5.00 L of solution for intravenous injection? The osmotic pressure of the glucose solution must equal the osmotic pressure of blood. (R = 0.08206 L·atm/mol·K) a. ...
... ____ 27. The osmotic pressure of blood is 7.65 atm at 37 C. What mass of glucose (C6H12O6, molar mass = 180.2 g/mol) is needed to prepare 5.00 L of solution for intravenous injection? The osmotic pressure of the glucose solution must equal the osmotic pressure of blood. (R = 0.08206 L·atm/mol·K) a. ...
論 文 の 内 容 の 要 旨 論文題目 Synthesis and Property of Low
... Since boron is group 13 element and it has three valence electrons, the oxidation state of most boron compounds is three. Boron(III) compounds are known as useful reagents in synthetic organic chemistry, for instance, hydroboranes for hydroboration and boronic acids for Suzuki-Miyaura cross-coupling ...
... Since boron is group 13 element and it has three valence electrons, the oxidation state of most boron compounds is three. Boron(III) compounds are known as useful reagents in synthetic organic chemistry, for instance, hydroboranes for hydroboration and boronic acids for Suzuki-Miyaura cross-coupling ...
CHEMISTRY 212 EXAM 2 Friday, February 13, 2004 Answer Key 1
... 16. (4) Which of the following is the best method of preparing meta-nitrobenzoic acid from benzene? a) CH3Cl with AlCl3; then KMnO4; then HNO3 / H2SO4 b) CH3Cl with AlCl3; then HNO3 / H2SO4; then KMnO4 c) HNO3 / H2SO4; then KMnO4; then CH3Cl with AlCl3 d) HNO3 / H2SO4; then CH3Cl with AlCl3; then KM ...
... 16. (4) Which of the following is the best method of preparing meta-nitrobenzoic acid from benzene? a) CH3Cl with AlCl3; then KMnO4; then HNO3 / H2SO4 b) CH3Cl with AlCl3; then HNO3 / H2SO4; then KMnO4 c) HNO3 / H2SO4; then KMnO4; then CH3Cl with AlCl3 d) HNO3 / H2SO4; then CH3Cl with AlCl3; then KM ...
Polysaccharides
... • Glycogen constitutes up to 10% of liver mass and 1-2% of muscle mass • Glycogen is stored energy for the organism • Similar in structure to amylopectin, only difference from starch: number of branches • Alpha(1,6) branches every 8-12 residues • Like amylopectin, glycogen gives a red-violet color w ...
... • Glycogen constitutes up to 10% of liver mass and 1-2% of muscle mass • Glycogen is stored energy for the organism • Similar in structure to amylopectin, only difference from starch: number of branches • Alpha(1,6) branches every 8-12 residues • Like amylopectin, glycogen gives a red-violet color w ...
Principles of Conductivity Measurement
... salt (NaCl) decomposes into Sodium ions (Na+) and Cloride ions (Cl-). The conductivity of ultra pure water is very low, because approximately one molecule of water (H2O) in a billion decomposes into H+ and OH- ions. This intrinsic conductivity of water also represents the lower border of the conduct ...
... salt (NaCl) decomposes into Sodium ions (Na+) and Cloride ions (Cl-). The conductivity of ultra pure water is very low, because approximately one molecule of water (H2O) in a billion decomposes into H+ and OH- ions. This intrinsic conductivity of water also represents the lower border of the conduct ...
a half-reaction
... only measure the total conductivity. So, the conductometry is a method of the determination of total salinity. Nowadays, it is used for the determination of total salinity in pipelines, in water purification systems and so on. ...
... only measure the total conductivity. So, the conductometry is a method of the determination of total salinity. Nowadays, it is used for the determination of total salinity in pipelines, in water purification systems and so on. ...
Carbohydrates Typical formula: C (H O) , eg glucose: C H O
... basic solution (unless R, itself, is a hemiacetal that can open to an aldose or ketose). A sugar which reduces Tollen’s reagent or Benedict’s solution is called a reducing sugar. It is the aldehyde or a-hydroxyketone group that is oxidized. Therefore, glycosides are not reducing sugars (unless R, it ...
... basic solution (unless R, itself, is a hemiacetal that can open to an aldose or ketose). A sugar which reduces Tollen’s reagent or Benedict’s solution is called a reducing sugar. It is the aldehyde or a-hydroxyketone group that is oxidized. Therefore, glycosides are not reducing sugars (unless R, it ...
Chapter 3
... Common names are still used for some alkenes and alkynes, particularly those with low molecular weight. ...
... Common names are still used for some alkenes and alkynes, particularly those with low molecular weight. ...
The Shell Higher Olefins Process (SHOP)
... 3. Metathesis step: The isomer mixture is passed over an alumina-supported molibdate catalyst. The cross metathesis gives a mixture of linear internal alkenes with both odd and even numbers of carbon atoms: ...
... 3. Metathesis step: The isomer mixture is passed over an alumina-supported molibdate catalyst. The cross metathesis gives a mixture of linear internal alkenes with both odd and even numbers of carbon atoms: ...
Mass Spectrometry and Free Radicals MS recap Positive mode of
... In most cases, the radical cation will fragment. This is what generates the other peaks in the mass spectrum. This fragmentation is just free radical chemistry, like we have been previously studying. The only difference is we are starting from a radical cation. But it is the radical character that ...
... In most cases, the radical cation will fragment. This is what generates the other peaks in the mass spectrum. This fragmentation is just free radical chemistry, like we have been previously studying. The only difference is we are starting from a radical cation. But it is the radical character that ...
Problem Set Chapter 13 Solutions February 28, 2013 13.27 Draw
... 13.50 How would you prepare the following substances from cyclopentanol? More than one step may be required. (a) Cyclopentanone (b) Cyclopentene (c) 1-Methylcyclopentanol (d) trans-2-Methylcyclopentanol ...
... 13.50 How would you prepare the following substances from cyclopentanol? More than one step may be required. (a) Cyclopentanone (b) Cyclopentene (c) 1-Methylcyclopentanol (d) trans-2-Methylcyclopentanol ...
Organometallic Catalysts
... 1953 that when TiCl3(s) and AlEt3 are combined together they produced an extremely active heterogeneous catalyst for the polymerization of ethylene at atmospheric pressure. Giulio Natta (1903-1979), an Italian chemist, extended the method to other olefins like propylene and developed variations of t ...
... 1953 that when TiCl3(s) and AlEt3 are combined together they produced an extremely active heterogeneous catalyst for the polymerization of ethylene at atmospheric pressure. Giulio Natta (1903-1979), an Italian chemist, extended the method to other olefins like propylene and developed variations of t ...
PART 3 Principles and Applications of Organometallics in Catalysis
... of the uses of acetic anhydride are based on acetylation of alcohols and phenols. The side products from such processes such as acetic acid and methyl acetate can be recycled using a further adaptation of the Monsanto process. ...
... of the uses of acetic anhydride are based on acetylation of alcohols and phenols. The side products from such processes such as acetic acid and methyl acetate can be recycled using a further adaptation of the Monsanto process. ...
F324 : Rings, Polymers and Analysis
... describe esterification of carboxylic acids with alcohols, in the presence of an acid catalyst (see also 2.2.1.g); of acid anhydrides with alcohols; describe the hydrolysis of esters: (i) in hot aqueous acid to form carboxylic acids and alcohols, (ii) in hot aqueous alkali to form carboxylate salts ...
... describe esterification of carboxylic acids with alcohols, in the presence of an acid catalyst (see also 2.2.1.g); of acid anhydrides with alcohols; describe the hydrolysis of esters: (i) in hot aqueous acid to form carboxylic acids and alcohols, (ii) in hot aqueous alkali to form carboxylate salts ...
Chapter 26 Functional Groups and Organic Reactions
... Derivatives of the carboxylic acids, in which the -OH from the carboxyl group is replaced by an -OR from an alcohol: carboxylic acid + alcohol ester + water many ...
... Derivatives of the carboxylic acids, in which the -OH from the carboxyl group is replaced by an -OR from an alcohol: carboxylic acid + alcohol ester + water many ...
Organic Chemistry Background
... linked together. The repeating unit is called a monomer. The chains can be physically entangled and chemically cross-linked (bonded) together. Important properties of polymers are their memory (elasticity), their high viscosity, and their poor solubility in water. Important applications of polymers ...
... linked together. The repeating unit is called a monomer. The chains can be physically entangled and chemically cross-linked (bonded) together. Important properties of polymers are their memory (elasticity), their high viscosity, and their poor solubility in water. Important applications of polymers ...
File
... _______20. Magnesium sulfate, MgSO4 has a molar mass of 120.4 grams. However, it is commonly found in a hydrate called epsom salt, with the formula MgSO4•7H2O. The % of water by mass in this hydrate is closest to A) 1.04% B) 96 % C) 51 % D) 73 % E) 86 % _______21. How many grams of NaOH must be diss ...
... _______20. Magnesium sulfate, MgSO4 has a molar mass of 120.4 grams. However, it is commonly found in a hydrate called epsom salt, with the formula MgSO4•7H2O. The % of water by mass in this hydrate is closest to A) 1.04% B) 96 % C) 51 % D) 73 % E) 86 % _______21. How many grams of NaOH must be diss ...
Constructing Models of Carbodydrates
... Connect the open positions on the carbon and nitrogen with a bond. Join the H and –OH to make water. ...
... Connect the open positions on the carbon and nitrogen with a bond. Join the H and –OH to make water. ...
Electrochemical oxidation of cinnamic acid using stainless steel
... The IR spectrum of the product shows absorption peaks with reduced intensity and this is characteristic of the IR spectra taken using film technique. The IR spectrum of the product has absorption frequencies corresponding to aromatic stretching (2910 cm-~), aroamtic substituted alkene (1640 and 1630 ...
... The IR spectrum of the product shows absorption peaks with reduced intensity and this is characteristic of the IR spectra taken using film technique. The IR spectrum of the product has absorption frequencies corresponding to aromatic stretching (2910 cm-~), aroamtic substituted alkene (1640 and 1630 ...
Organic Structure Notes
... a. Charles Goodyear, 1839, found a way to make natural rubber (which is soft and weak) strong when he accidentally dropped some of his mixture onto a hot stove. 1.This process made the rubber much stronger. 2. The polymer chains were joined together by sulfur links. 3. This results in “Vulcanized ru ...
... a. Charles Goodyear, 1839, found a way to make natural rubber (which is soft and weak) strong when he accidentally dropped some of his mixture onto a hot stove. 1.This process made the rubber much stronger. 2. The polymer chains were joined together by sulfur links. 3. This results in “Vulcanized ru ...
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.