PPT - Unit 5
... -(C2H2(g) + 5/2O2(g) → 2CO2(g) + H2O(l) ΔH = -1300. kJ) 2( C(s) + O2(g) → CO2(g) ) 2(ΔH = -394 kJ) H2(g) + 1/2O2(g) → H2O(l) ΔH = -286 kJ Calculate ΔH for the following reaction: 2C(s) + H2(g) → C2H2(g) 2C(s) + 2O2(g) → 2CO2(g) ΔH = -788 kJ 2CO2(g) + H2O(l) → C2H2(g) + 5/2O2(g) ΔH = +1300 kJ H2(g) + ...
... -(C2H2(g) + 5/2O2(g) → 2CO2(g) + H2O(l) ΔH = -1300. kJ) 2( C(s) + O2(g) → CO2(g) ) 2(ΔH = -394 kJ) H2(g) + 1/2O2(g) → H2O(l) ΔH = -286 kJ Calculate ΔH for the following reaction: 2C(s) + H2(g) → C2H2(g) 2C(s) + 2O2(g) → 2CO2(g) ΔH = -788 kJ 2CO2(g) + H2O(l) → C2H2(g) + 5/2O2(g) ΔH = +1300 kJ H2(g) + ...
Reactions of Alkenes
... There are two possible products arising from the two different ways of adding H-Br across the double bond. But only one is observed. The observed product is the one resulting from the more stable carbocation intermediate. ...
... There are two possible products arising from the two different ways of adding H-Br across the double bond. But only one is observed. The observed product is the one resulting from the more stable carbocation intermediate. ...
Give reasons for the following.(one mark each)
... 19. Nitro group attached to benzene ring shows its activity only at ortho & para position and not at meta positions. 20. Electrophilic substitution reaction in haloarenes occurs slowly and require drastic conditions as compared to those in benzene. 21. Allylic and benzylic halides are more reactive ...
... 19. Nitro group attached to benzene ring shows its activity only at ortho & para position and not at meta positions. 20. Electrophilic substitution reaction in haloarenes occurs slowly and require drastic conditions as compared to those in benzene. 21. Allylic and benzylic halides are more reactive ...
Practice exam 1 - Little Dumb doctor, homework solutions
... lines for covalent bonds, show any formal charges where appropriate, and indicate the hybridization of each atom other than hydrogen or halogen. a) C2O2Cl2 ...
... lines for covalent bonds, show any formal charges where appropriate, and indicate the hybridization of each atom other than hydrogen or halogen. a) C2O2Cl2 ...
Organic and Biological Molecules
... Carbon readily forms long chains of bonds with itself. This property is called catenation, and is fairly unique. It results for several reasons: 1. Carbon can make up to 4 bonds. 2. The carbon-carbon bond is generally as strong as bonds between carbon and other ...
... Carbon readily forms long chains of bonds with itself. This property is called catenation, and is fairly unique. It results for several reasons: 1. Carbon can make up to 4 bonds. 2. The carbon-carbon bond is generally as strong as bonds between carbon and other ...
(i) Coordination entity
... complex formation. Write the electronic configuration of the valence electrons of the metal Mn+ ion in terms of t2g and eg. What type of the hybridization will Mn+ ion have? Name the type of isomerism exhibited by this complex. 15. The coordination no. of Ni2+ is 4. NiCl2 + KCN(excess) → A( a cyano ...
... complex formation. Write the electronic configuration of the valence electrons of the metal Mn+ ion in terms of t2g and eg. What type of the hybridization will Mn+ ion have? Name the type of isomerism exhibited by this complex. 15. The coordination no. of Ni2+ is 4. NiCl2 + KCN(excess) → A( a cyano ...
Chemistry of Coordination Compounds
... compound. As shown in the ball-and-stick model, the chlorides serve as counter ions to the cobalt/ammonia coordiation complex in the orange compound, while one of the ammonia molecules is replaced by Cl in the purple compound. In both cases, the coordination geometry is octahedral around Co. ...
... compound. As shown in the ball-and-stick model, the chlorides serve as counter ions to the cobalt/ammonia coordiation complex in the orange compound, while one of the ammonia molecules is replaced by Cl in the purple compound. In both cases, the coordination geometry is octahedral around Co. ...
ch11 by dr. Dina
... Ethers are described as symmetrical or unsymmetrical depending on whether the two groups bonded to oxygen are the same or different. Unsymmetrical ethers are also called mixed ethers. Diethyl eth ...
... Ethers are described as symmetrical or unsymmetrical depending on whether the two groups bonded to oxygen are the same or different. Unsymmetrical ethers are also called mixed ethers. Diethyl eth ...
Preparation, Properties, and Catalytic Activity of Fluorous Phosphine
... catalytic system of TiCl4 with co-catalyst Li[Al(n-C7H15)4] plus the monomer in benzene.5 ROMP of norbornene was subsequently accomplished by employing ethanolic solutions of the monomer plus the late transition metal salts RuCl3·3H2O, OsCl3·3H2O, or IrCl3·3H2O.6 Late transition metal catalysts are ...
... catalytic system of TiCl4 with co-catalyst Li[Al(n-C7H15)4] plus the monomer in benzene.5 ROMP of norbornene was subsequently accomplished by employing ethanolic solutions of the monomer plus the late transition metal salts RuCl3·3H2O, OsCl3·3H2O, or IrCl3·3H2O.6 Late transition metal catalysts are ...
127 - Chimica
... (CO),] (compound 4), identified spectroscopically (IR and 'H NMR), which was previously synthesized'" by photochemical hydrogenation of [Re2(CO)lo].The new method parallels that recently discovered8for the transformation of [Re4H6(CO)12]2into the unsaturated [Re4H5(CO),,]-. As in that case, the proc ...
... (CO),] (compound 4), identified spectroscopically (IR and 'H NMR), which was previously synthesized'" by photochemical hydrogenation of [Re2(CO)lo].The new method parallels that recently discovered8for the transformation of [Re4H6(CO)12]2into the unsaturated [Re4H5(CO),,]-. As in that case, the proc ...
4 - mvhs-fuhsd.org
... • Metallic carbonates --> metal oxides + carbon dioxide • Ammonium carbonate ammonia, water and carbon dioxide. Hydrolysis = compound reacting with water. • Watch for soluble salts that contain anions of weak acid the anion is a conjugate base and cations of weak bases that are conjugate acids. Re ...
... • Metallic carbonates --> metal oxides + carbon dioxide • Ammonium carbonate ammonia, water and carbon dioxide. Hydrolysis = compound reacting with water. • Watch for soluble salts that contain anions of weak acid the anion is a conjugate base and cations of weak bases that are conjugate acids. Re ...
Document
... Synthesis: making larger, more complex molecules out of less complex ones using known and reliable reactions. devise a synthetic plan by working the problem backward from the target molecule ...
... Synthesis: making larger, more complex molecules out of less complex ones using known and reliable reactions. devise a synthetic plan by working the problem backward from the target molecule ...
Types of Chemical Reactions
... compounds exchange places in an aqueous solution to form two new compounds. – General equation AX + BY AY + BX ...
... compounds exchange places in an aqueous solution to form two new compounds. – General equation AX + BY AY + BX ...
Nucleophilic Substitution Swapping
... The ability of solvents to stabilize ions through solvation is directly associated with their polarity. Polar solvents, such as water, can stabilize the ions 3X more than alcohol (see chart) Methanol can stabilize ions through solvation, but water is best at controlling ions. The :OH- is a super st ...
... The ability of solvents to stabilize ions through solvation is directly associated with their polarity. Polar solvents, such as water, can stabilize the ions 3X more than alcohol (see chart) Methanol can stabilize ions through solvation, but water is best at controlling ions. The :OH- is a super st ...
2009
... 2 For this section of the examination you must use an HB pencil and, where necessary, an eraser. 3 Check that the answer sheet you have been given has your name, date of birth, SCN (Scottish Candidate Number) and Centre Name printed on it. Do not change any of these details. 4 If any of this informa ...
... 2 For this section of the examination you must use an HB pencil and, where necessary, an eraser. 3 Check that the answer sheet you have been given has your name, date of birth, SCN (Scottish Candidate Number) and Centre Name printed on it. Do not change any of these details. 4 If any of this informa ...
N - Dr. May Notes
... Alkenes Alkenes have one or more double bond between two or more of the carbons. The carbons are sharing two pairs of electrons. Alkenes are unsaturated meaning that they can hold more hydrogens or that all the carbons do not have as much hydrogen around it as it could have. If hydrogen gas (plus a ...
... Alkenes Alkenes have one or more double bond between two or more of the carbons. The carbons are sharing two pairs of electrons. Alkenes are unsaturated meaning that they can hold more hydrogens or that all the carbons do not have as much hydrogen around it as it could have. If hydrogen gas (plus a ...
Name______________________ Period________
... 30. According to the Dual Nature of Light, light acts as a __________________ and a _________________. ...
... 30. According to the Dual Nature of Light, light acts as a __________________ and a _________________. ...
Additional file 1
... was extracted with ethyl acetate. The combined organic layers were washed with brine, dried over Na2SO4, and filtered. The filtrate was evaporated under vacuum and the residue was purified by chromatography to produce the desired alcohol 2. 1H NMR (CDCl3) 1.67 (d, 3H), ...
... was extracted with ethyl acetate. The combined organic layers were washed with brine, dried over Na2SO4, and filtered. The filtrate was evaporated under vacuum and the residue was purified by chromatography to produce the desired alcohol 2. 1H NMR (CDCl3) 1.67 (d, 3H), ...
Inorganic Chemistry review sheet Exam #3 Ch. 9 Lewis acids (e
... Guoy balance- used to determine if TM is diamagnetic (all e–s paired up) or paramagnetic (at least one unpaired e–) ______ Calculate effective magnetic moment, μSO = √n(n+2) from attractive force. Compare μeff with spin only magnetic moment, μSO. μeff comes from the spin & orbital motion of an e–. S ...
... Guoy balance- used to determine if TM is diamagnetic (all e–s paired up) or paramagnetic (at least one unpaired e–) ______ Calculate effective magnetic moment, μSO = √n(n+2) from attractive force. Compare μeff with spin only magnetic moment, μSO. μeff comes from the spin & orbital motion of an e–. S ...
Hydroformylation
Hydroformylation, also known as oxo synthesis or oxo process, is an important homogeneously catalyzed industrial process for the production of aldehydes from alkenes. This chemical reaction entails the addition of a formyl group (CHO) and a hydrogen atom to a carbon-carbon double bond. This process has undergone continuous growth since its invention in 1938: Production capacity reached 6.6×106 tons in 1995. It is important because the resulting aldehydes are easily converted into many secondary products. For example, the resulting aldehydes are hydrogenated to alcohols that are converted to plasticizers or detergents. Hydroformylation is also used in specialty chemicals, relevant to the organic synthesis of fragrances and natural products. The development of hydroformylation, which originated within the German coal-based industry, is considered one of the premier achievements of 20th-century industrial chemistry.The process typically entails treatment of an alkene with high pressures (between 10 to 100 atmospheres) of carbon monoxide and hydrogen at temperatures between 40 and 200 °C. Transition metal catalysts are required.