phenols - Gneet`s
... Sodium salt of aryl sulphonic acids on fusion with sodium hydroxide at 300-350oC yield phenol ...
... Sodium salt of aryl sulphonic acids on fusion with sodium hydroxide at 300-350oC yield phenol ...
Scoring Guidelines - AP Central
... Note: [AlF4] − and [AlF5]2− were also accepted as products. (h) Solid potassium carbonate is added to 1.0 M sulfuric acid. K2CO3 + H+ → CO2 + H2O + K+ ...
... Note: [AlF4] − and [AlF5]2− were also accepted as products. (h) Solid potassium carbonate is added to 1.0 M sulfuric acid. K2CO3 + H+ → CO2 + H2O + K+ ...
Class-X Science - Kendriya Vidyalaya Sangathan Regional Office
... 2. a) Crystals of a substance changed their color on heating in a closed test tube but regained it after some time when they were allowed to cool down. Name the substance and write its formula .Explain the phenomenon. b) How is sodium carbonate prepared ? Give two uses of the compound a ) Copper sul ...
... 2. a) Crystals of a substance changed their color on heating in a closed test tube but regained it after some time when they were allowed to cool down. Name the substance and write its formula .Explain the phenomenon. b) How is sodium carbonate prepared ? Give two uses of the compound a ) Copper sul ...
- Kendriya Vidyalaya No.1, Satna
... 2. a) Crystals of a substance changed their color on heating in a closed test tube but regained it after some time when they were allowed to cool down. Name the substance and write its formula .Explain the phenomenon. b) How is sodium carbonate prepared ? Give two uses of the compound a ) Copper sul ...
... 2. a) Crystals of a substance changed their color on heating in a closed test tube but regained it after some time when they were allowed to cool down. Name the substance and write its formula .Explain the phenomenon. b) How is sodium carbonate prepared ? Give two uses of the compound a ) Copper sul ...
X -Science Support Material
... 2. a) Crystals of a substance changed their color on heating in a closed test tube but regained it after some time when they were allowed to cool down. Name the substance and write its formula .Explain the phenomenon. b) How is sodium carbonate prepared ? Give two uses of the compound a ) Copper sul ...
... 2. a) Crystals of a substance changed their color on heating in a closed test tube but regained it after some time when they were allowed to cool down. Name the substance and write its formula .Explain the phenomenon. b) How is sodium carbonate prepared ? Give two uses of the compound a ) Copper sul ...
- Kendriya Vidyalaya Damoh
... 2. a) Crystals of a substance changed their color on heating in a closed test tube but regained it after some time when they were allowed to cool down. Name the substance and write its formula .Explain the phenomenon. b) How is sodium carbonate prepared ? Give two uses of the compound a ) Copper sul ...
... 2. a) Crystals of a substance changed their color on heating in a closed test tube but regained it after some time when they were allowed to cool down. Name the substance and write its formula .Explain the phenomenon. b) How is sodium carbonate prepared ? Give two uses of the compound a ) Copper sul ...
How does it vary with the charge and distance of the ions?
... Construct the M2O diagram of NO and hence calculate the bond order of NO+. What is the difference between ambidentate & polydentate ligand. Explain with examples. How would you identify Cis and Trans isomers of [CO(NH3)4Cl2]Cl by chemical methods. The dipole moment of HCl is 1.03D. The distance betw ...
... Construct the M2O diagram of NO and hence calculate the bond order of NO+. What is the difference between ambidentate & polydentate ligand. Explain with examples. How would you identify Cis and Trans isomers of [CO(NH3)4Cl2]Cl by chemical methods. The dipole moment of HCl is 1.03D. The distance betw ...
E:\My Documents\sch4u\SCH4U review McKay answers.wpd
... 2) You are given a 100.0 mL sample of 0.0010 M silver nitrate and 100.0 mL of solution made by dissolving 6.4X10-4 g of sodium carbonate (not sodium bicarbonate) in enough water to make 100.0 mL of solution. If the two solutions are mixed at 25/C, will a precipitate of silver carbonate form? (Ans; ...
... 2) You are given a 100.0 mL sample of 0.0010 M silver nitrate and 100.0 mL of solution made by dissolving 6.4X10-4 g of sodium carbonate (not sodium bicarbonate) in enough water to make 100.0 mL of solution. If the two solutions are mixed at 25/C, will a precipitate of silver carbonate form? (Ans; ...
Document
... suggested that there is a mathematical relationship among a series of reactions leading from a set of reactants to a set of products. This generalization has been tested in many experiments and is now accepted as the law of additivity of reaction enthalpies, also known as Hess’s Law The value of the ...
... suggested that there is a mathematical relationship among a series of reactions leading from a set of reactants to a set of products. This generalization has been tested in many experiments and is now accepted as the law of additivity of reaction enthalpies, also known as Hess’s Law The value of the ...
Follow Along Notes - Jackson County School System
... 4NO + 6H2O a. cannot be determined without rate data b. is Kc = ...
... 4NO + 6H2O a. cannot be determined without rate data b. is Kc = ...
CHAPTER-7
... b) Effect of concentration: Increase in concentration of reactants increase rate of forward reaction. Addition of ammonia or decrease in concentration of reactants increase rate of backward reaction. c) Effect of temperature: Increase in temperature increases rate of endothermic reaction that is bac ...
... b) Effect of concentration: Increase in concentration of reactants increase rate of forward reaction. Addition of ammonia or decrease in concentration of reactants increase rate of backward reaction. c) Effect of temperature: Increase in temperature increases rate of endothermic reaction that is bac ...
Ex 3 Aspirin
... the association between their physical characteristics and those of the disease or the affected part of the body. ‘Nature marks each growth… according to its curative benefit.’ Paracelsus noticed how the qualities of plants so often reflect their appearance – that the seeds of skullcap, for example, ...
... the association between their physical characteristics and those of the disease or the affected part of the body. ‘Nature marks each growth… according to its curative benefit.’ Paracelsus noticed how the qualities of plants so often reflect their appearance – that the seeds of skullcap, for example, ...
Today`s literature presentation = 2/5th trivia + 2/5th
... Reductive amination done with NaBH3CN or Na(OAc)3BH at early stage, superseded with catalytic hydrogenation over appropriate catalyst at industrial scale. ...
... Reductive amination done with NaBH3CN or Na(OAc)3BH at early stage, superseded with catalytic hydrogenation over appropriate catalyst at industrial scale. ...
Topic 9 Reduction and Oxidation File
... Standard electrode potential: The electrode potential of one half-cell compared against another half-cell, by convention, the hydrogen half-cell, which is arbitrarily given a value of 0 V. Standard cell potential: Difference between the two standard electrode potentials of the two half cells. Stand ...
... Standard electrode potential: The electrode potential of one half-cell compared against another half-cell, by convention, the hydrogen half-cell, which is arbitrarily given a value of 0 V. Standard cell potential: Difference between the two standard electrode potentials of the two half cells. Stand ...
Kinetics and Mechanisms of the Reactions of Diaryl
... for the reaction of SiMe2 with various aliphatic alcohols in hydrocarbon solution at ambient temperatures, monitoring the decay of the silylene directly by laser flash photolysis.17-19 Das and co-workers also examined the complexation of SiMe2 with tetrahydrofuran (THF) in cyclohexane solution, repo ...
... for the reaction of SiMe2 with various aliphatic alcohols in hydrocarbon solution at ambient temperatures, monitoring the decay of the silylene directly by laser flash photolysis.17-19 Das and co-workers also examined the complexation of SiMe2 with tetrahydrofuran (THF) in cyclohexane solution, repo ...
Unit5C - OCCC.edu
... – Write all soluble strong electrolytes as ions – Eliminate the spectator ions Zn (s) + 2 HCl (aq) ZnCl2 (aq) + H2 (g) Zn (s) + 2 H+ (aq) + 2 Cl- (aq) Zn2+ (aq) + 2 Cl- (aq) + H2 ...
... – Write all soluble strong electrolytes as ions – Eliminate the spectator ions Zn (s) + 2 HCl (aq) ZnCl2 (aq) + H2 (g) Zn (s) + 2 H+ (aq) + 2 Cl- (aq) Zn2+ (aq) + 2 Cl- (aq) + H2 ...
Reactions of Aromatic Compounds
... The amide group (–NHCOCH3) is a strong activating and directing group because the nitrogen atom with its nonbonding pair of electrons is bonded to the aromatic ring. The amide group is a stronger director than the chlorine atom, and substitution occurs mostly at the positions ortho to the amide. Lik ...
... The amide group (–NHCOCH3) is a strong activating and directing group because the nitrogen atom with its nonbonding pair of electrons is bonded to the aromatic ring. The amide group is a stronger director than the chlorine atom, and substitution occurs mostly at the positions ortho to the amide. Lik ...
Chem12 SM Unit 5 Review final ok
... 42. (a) In P2O5, the oxidation number of O is –2 and the oxidation number of P is +5. (b) In NO2, the oxidation number of O is –2 and the oxidation number of N is +4. (c) In Na2SO4, the oxidation number of Na is +1, the oxidation number of O is –2, and the oxidation number of S is +6. (d) In Cu(NO3) ...
... 42. (a) In P2O5, the oxidation number of O is –2 and the oxidation number of P is +5. (b) In NO2, the oxidation number of O is –2 and the oxidation number of N is +4. (c) In Na2SO4, the oxidation number of Na is +1, the oxidation number of O is –2, and the oxidation number of S is +6. (d) In Cu(NO3) ...
CH 320-328 M Synopsis
... • Know how to predict and rationalize which regioisomeric product will be formed as the major product in the addition of an unsymmetrical reagent, such as H–X (X = halogen), X2/H2O (or X2/CH3OH, etc.), ...
... • Know how to predict and rationalize which regioisomeric product will be formed as the major product in the addition of an unsymmetrical reagent, such as H–X (X = halogen), X2/H2O (or X2/CH3OH, etc.), ...
Strychnine total synthesis
Strychnine total synthesis in chemistry describes the total synthesis of the complex biomolecule strychnine. The first reported method by the group of Robert Burns Woodward in 1954 is considered a classic in this research field. At the time it formed the natural conclusion to an elaborate process of molecular structure elucidation that started with the isolation of strychnine from the beans of Strychnos ignatii by Pierre Joseph Pelletier and Joseph Bienaimé Caventou in 1818. Major contributors to the entire effort were Sir Robert Robinson with over 250 publications and Hermann Leuchs with another 125 papers in a time span of 40 years. Robinson was awarded the Nobel Prize in Chemistry in 1947 for his work on alkaloids, strychnine included. The process of chemical identification was completed with publications in 1946 by Robinson and later confirmed by Woodward in 1947. X-ray structures establishing the absolute configuration became available between 1947 and 1951 with publications from J. M. Bijvoet and J.H. Robertson .Woodward published a very brief account on the strychnine synthesis in 1954 (just 3 pages) and a lengthy one (42 pages) in 1963.Many more methods exist and reported by the research groups of Magnus, Overman, Kuehne, Rawal, Bosch, Vollhardt, Mori, Shibasaki, Li, Fukuyama Vanderwal and MacMillan. Synthetic (+)-strychnine is also known. Racemic synthesises were published by Padwa in 2007 and in 2010 by Andrade and by Reissig.In his 1963 publication Woodward quoted Sir Robert Robinson who said for its molecular size it is the most complex substance known.