Catalysis Web Pages for Pre-University
... old tin objects at low temperatures. Tin pest is also called tin disease, tin blight or tin leprosy. Below 13.5 oC pure tin transforms from the β-form white metallic tin allotrope which is ductile to the brittle, non-metallic, α-form grey tin. Once the grey form of tin forms it autocatalyses the all ...
... old tin objects at low temperatures. Tin pest is also called tin disease, tin blight or tin leprosy. Below 13.5 oC pure tin transforms from the β-form white metallic tin allotrope which is ductile to the brittle, non-metallic, α-form grey tin. Once the grey form of tin forms it autocatalyses the all ...
alcohols ws 1 - Chesterhouse School
... (d) Lactic acid is chiral. Draw displayed formulae of the two optical isomers of lactic acid clearly showing their three-dimensional structures. Indicate with an asterisk (*) the chiral carbon atom in each. ...
... (d) Lactic acid is chiral. Draw displayed formulae of the two optical isomers of lactic acid clearly showing their three-dimensional structures. Indicate with an asterisk (*) the chiral carbon atom in each. ...
Qualitative Analysis Lab
... have to add just enough drops to effect a change, making sure that you mix the solution well after each addition. You can use the tip of a clean glass rod to mix the drops in each well. Each identification test will be performed on all seven of the compounds so that you can observe and record the re ...
... have to add just enough drops to effect a change, making sure that you mix the solution well after each addition. You can use the tip of a clean glass rod to mix the drops in each well. Each identification test will be performed on all seven of the compounds so that you can observe and record the re ...
Time
... - Le Chatelier’s principle, working with equilibrium expressions qualitatively and quantitatively. - Common ion effect on equilibria in aqueous systems ...
... - Le Chatelier’s principle, working with equilibrium expressions qualitatively and quantitatively. - Common ion effect on equilibria in aqueous systems ...
Chapter 16: Ethers, Epoxides, and Sulfides
... • Works best for methyl- and 1°-halides or tosylates. • E2 elimination is a competing reaction with 2° -halides or tosylates • 3° halides undergo E2 elimination • Vinyl and aryl halides do not react ...
... • Works best for methyl- and 1°-halides or tosylates. • E2 elimination is a competing reaction with 2° -halides or tosylates • 3° halides undergo E2 elimination • Vinyl and aryl halides do not react ...
Chemical Reactions
... Identify the type of reaction for each of the following synthesis or decomposition reactions, and write the balanced equation: Nitrogen and oxygen react to form nitrogen ...
... Identify the type of reaction for each of the following synthesis or decomposition reactions, and write the balanced equation: Nitrogen and oxygen react to form nitrogen ...
Catalytic Synthesis of Organophosphorus Compounds from
... The reduced metals were recycled by the mixture of O 2-HNO2 (1), or NaBrO3 (2), C6H4O2 (3,4). It has been established that the PH 3 ligand is dissociated with formation of phosphide and an equivalent amount of acid inside coordination sphere of a high-valent transition metal ion. The subsequent reac ...
... The reduced metals were recycled by the mixture of O 2-HNO2 (1), or NaBrO3 (2), C6H4O2 (3,4). It has been established that the PH 3 ligand is dissociated with formation of phosphide and an equivalent amount of acid inside coordination sphere of a high-valent transition metal ion. The subsequent reac ...
File
... products (C and D) yet. As the reaction proceeds the concentrations of A and B decrease while the concentrations of C and D increase. This continues until the two rates become equal. At this point the concentration of A, B, C and D are constant and the (closed) system is at chemical equilibrium. ...
... products (C and D) yet. As the reaction proceeds the concentrations of A and B decrease while the concentrations of C and D increase. This continues until the two rates become equal. At this point the concentration of A, B, C and D are constant and the (closed) system is at chemical equilibrium. ...
OC 2/e Ch 15
... • aldehydes and ketones are polar compounds and interact in the pure state by dipole-dipole interaction • they have higher boiling points and are more soluble in water than nonpolar compounds of comparable ...
... • aldehydes and ketones are polar compounds and interact in the pure state by dipole-dipole interaction • they have higher boiling points and are more soluble in water than nonpolar compounds of comparable ...
Factors that affect the rate of reactions
... MOVE FASTER, HIT each other MORE OFTEN with MORE ENERGY The reaction rate will INCREASE ...
... MOVE FASTER, HIT each other MORE OFTEN with MORE ENERGY The reaction rate will INCREASE ...
Final Review 2006
... c. neutral group of atoms held together by covalent bonds. d. neutral group of atoms held together by ionic bonds. ____ 76. What principle states that atoms tend to form compounds so that each atom can have eight electrons in its outermost energy level? a. rule of eights c. configuration rule b. Avo ...
... c. neutral group of atoms held together by covalent bonds. d. neutral group of atoms held together by ionic bonds. ____ 76. What principle states that atoms tend to form compounds so that each atom can have eight electrons in its outermost energy level? a. rule of eights c. configuration rule b. Avo ...
organic chemistry reaction scheme
... 6. Reaction with FeCl3(aq) *Note: This is a test for phenol. Violet complex upon adding iron(III) chloride will confirm presence of phenol. Colour may vary depending on the substitution on the ring. ...
... 6. Reaction with FeCl3(aq) *Note: This is a test for phenol. Violet complex upon adding iron(III) chloride will confirm presence of phenol. Colour may vary depending on the substitution on the ring. ...
final-H-2006-07-v1
... 5. You may write on the test booklet, including marking your answer choices. (This may be helpful if you find yourself accidentally off by one question on the answer sheet.) However, only the responses on your bubble sheet will be scored. 6. The exam consists of 110 multiple choice questions. A refe ...
... 5. You may write on the test booklet, including marking your answer choices. (This may be helpful if you find yourself accidentally off by one question on the answer sheet.) However, only the responses on your bubble sheet will be scored. 6. The exam consists of 110 multiple choice questions. A refe ...
final-H-2006-07-v2
... 5. You may write on the test booklet, including marking your answer choices. (This may be helpful if you find yourself accidentally off by one question on the answer sheet.) However, only the responses on your bubble sheet will be scored. 6. The exam consists of 110 multiple choice questions. A refe ...
... 5. You may write on the test booklet, including marking your answer choices. (This may be helpful if you find yourself accidentally off by one question on the answer sheet.) However, only the responses on your bubble sheet will be scored. 6. The exam consists of 110 multiple choice questions. A refe ...
Asymmetric induction
Asymmetric induction (also enantioinduction) in stereochemistry describes the preferential formation in a chemical reaction of one enantiomer or diastereoisomer over the other as a result of the influence of a chiral feature present in the substrate, reagent, catalyst or environment. Asymmetric induction is a key element in asymmetric synthesis.Asymmetric induction was introduced by Hermann Emil Fischer based on his work on carbohydrates. Several types of induction exist.Internal asymmetric induction makes use of a chiral center bound to the reactive center through a covalent bond and remains so during the reaction. The starting material is often derived from chiral pool synthesis. In relayed asymmetric induction the chiral information is introduced in a separate step and removed again in a separate chemical reaction. Special synthons are called chiral auxiliaries. In external asymmetric induction chiral information is introduced in the transition state through a catalyst of chiral ligand. This method of asymmetric synthesis is economically most desirable.