CHEM_2nd_Semester_Final_R eview
... 45. How many calories are needed to raise 450. grams of water from 21.0 oC to 85.5oC? 46. How many grams of water can be heated 46.0oC by 34.8 kJ? Reaction Rates 47. Define reaction rate. 48. What are the units for reaction rate? 49. Describe what happens to the concentration of reactants during a c ...
... 45. How many calories are needed to raise 450. grams of water from 21.0 oC to 85.5oC? 46. How many grams of water can be heated 46.0oC by 34.8 kJ? Reaction Rates 47. Define reaction rate. 48. What are the units for reaction rate? 49. Describe what happens to the concentration of reactants during a c ...
Chemistry 2nd Semester Final Exam Review Chemical Bonds Give
... 45. How many calories are needed to raise 450. grams of water from 21.0 oC to 85.5oC? 46. How many grams of water can be heated 46.0oC by 34.8 kJ? Reaction Rates 47. Define reaction rate. 48. What are the units for reaction rate? 49. Describe what happens to the concentration of reactants during a c ...
... 45. How many calories are needed to raise 450. grams of water from 21.0 oC to 85.5oC? 46. How many grams of water can be heated 46.0oC by 34.8 kJ? Reaction Rates 47. Define reaction rate. 48. What are the units for reaction rate? 49. Describe what happens to the concentration of reactants during a c ...
2nd Semester Final Review
... 45. How many calories are needed to raise 450. grams of water from 21.0 oC to 85.5oC? 46. How many grams of water can be heated 46.0oC by 34.8 kJ? Reaction Rates 47. Define reaction rate. 48. What are the units for reaction rate? 49. Describe what happens to the concentration of reactants during a c ...
... 45. How many calories are needed to raise 450. grams of water from 21.0 oC to 85.5oC? 46. How many grams of water can be heated 46.0oC by 34.8 kJ? Reaction Rates 47. Define reaction rate. 48. What are the units for reaction rate? 49. Describe what happens to the concentration of reactants during a c ...
chemistry 2 - waiukucollegescience
... In order to distinguish between propan-1-ol and propene a student said it was necessary to use bromine water rather than acidified potassium permanganate. Discuss this statement. ...
... In order to distinguish between propan-1-ol and propene a student said it was necessary to use bromine water rather than acidified potassium permanganate. Discuss this statement. ...
org test 1
... 2. Why is Sulphuric acid not used during reaction of alcohol with KI? 3. Why is preparation of ethers by acid catalysed dehydration of 2° and 3° alcohols not a suitable method? 4. Of benzene and phenol, which is more easily nitrated and why? 5. Ethers possess a net dipole moment even if they are sym ...
... 2. Why is Sulphuric acid not used during reaction of alcohol with KI? 3. Why is preparation of ethers by acid catalysed dehydration of 2° and 3° alcohols not a suitable method? 4. Of benzene and phenol, which is more easily nitrated and why? 5. Ethers possess a net dipole moment even if they are sym ...
Topic 17 specification content - A
... I can describe the nucleophilic addition–elimination reactions of water, alcohols, ammonia and primary amines with acyl chlorides and acid anhydrides and outline the mechanism of the nucleophilic addition–elimination reactions of acyl chlorides with water, alcohols, ammonia and primary amines ...
... I can describe the nucleophilic addition–elimination reactions of water, alcohols, ammonia and primary amines with acyl chlorides and acid anhydrides and outline the mechanism of the nucleophilic addition–elimination reactions of acyl chlorides with water, alcohols, ammonia and primary amines ...
esters - wellswaysciences
... formed in the reaction the hydroxide ions present react with them to form a salt. • This removes the acid from the reaction mixture and so the reaction moves RIGHT. • The base (or alkali) is used up in the reaction. • This is not strictly catalysed by the alkali. Why not? ...
... formed in the reaction the hydroxide ions present react with them to form a salt. • This removes the acid from the reaction mixture and so the reaction moves RIGHT. • The base (or alkali) is used up in the reaction. • This is not strictly catalysed by the alkali. Why not? ...
solutions
... 11) Zaitsev’s rule enables one to predict the major product of a(n) __________ reaction. a) condensation b) saponification c) oxidation d) elimination ...
... 11) Zaitsev’s rule enables one to predict the major product of a(n) __________ reaction. a) condensation b) saponification c) oxidation d) elimination ...
Slide 1
... • In these polymers, two different functional groups are required and for each new bond between the monomer units (shown coloured below), a small molecule (often water) is produced. • Each monomer must also have two functional groups. • This can involve two different functional groups on the same mo ...
... • In these polymers, two different functional groups are required and for each new bond between the monomer units (shown coloured below), a small molecule (often water) is produced. • Each monomer must also have two functional groups. • This can involve two different functional groups on the same mo ...
CHM 105 - Test 2 Review
... 8. Rank the boiling points of carboxylic acids, hydrocarbons, alcohols, ethers, aldehydes and ketones. Draw a specific example for each class of compound listed. 9. Draw the following molecules: potassium formate, ethylpropyl amine, N-methylbenzamide. Where possible, rename using the IUPAC system. 1 ...
... 8. Rank the boiling points of carboxylic acids, hydrocarbons, alcohols, ethers, aldehydes and ketones. Draw a specific example for each class of compound listed. 9. Draw the following molecules: potassium formate, ethylpropyl amine, N-methylbenzamide. Where possible, rename using the IUPAC system. 1 ...
Carboxylic Acid Derivatives and Nitriles
... used to acetylate functional groups such as alcohols and amines. Acetylation can modify both the chemistry and biological activity of a compound. In the case of aspirin, for example, acetylation of the relatively acidic phenol alcohol of salicylic acid leads to a compound that ...
... used to acetylate functional groups such as alcohols and amines. Acetylation can modify both the chemistry and biological activity of a compound. In the case of aspirin, for example, acetylation of the relatively acidic phenol alcohol of salicylic acid leads to a compound that ...
1 - Wikispaces
... (b) Propanoic acid can be prepared from propanal, CH3CH2CHO. State the reagents for this conversions. Reagents……………………………………………………………………………………………….. ...
... (b) Propanoic acid can be prepared from propanal, CH3CH2CHO. State the reagents for this conversions. Reagents……………………………………………………………………………………………….. ...
Slide 1
... polymer made from carboxylic acid derivatives: polyesters and polyamides. i) Polyesters: A well-known polyester, Terylene, is made by heating ethane-1,2-diol with dimethylbenzene-1,4-dicarboxylate (dimethyl terepthalate): ...
... polymer made from carboxylic acid derivatives: polyesters and polyamides. i) Polyesters: A well-known polyester, Terylene, is made by heating ethane-1,2-diol with dimethylbenzene-1,4-dicarboxylate (dimethyl terepthalate): ...
Chem 30BL_Lecture 2_.. - UCLA Chemistry and Biochemistry
... enthalpy (DH=23.9 kJ, ) nor the entropy (DS=84.91 J, ) changes much in the reaction and they also display opposing trends. Thus, the equilibrium constant is Keq=1.8 at 25 oC and Keq=8 at 80 oC, which are both low. ...
... enthalpy (DH=23.9 kJ, ) nor the entropy (DS=84.91 J, ) changes much in the reaction and they also display opposing trends. Thus, the equilibrium constant is Keq=1.8 at 25 oC and Keq=8 at 80 oC, which are both low. ...
Slide 1
... The Friedländer synthesis is the chemical reaction of 2-aminobenzaldehydes with ketones to form quinoline derivatives. It is named after German chemist Paul Friedländer (1857-1923). The simple and straightforward method for the synthesis of polysubstituted quinolines was reported by Friedländer in 1 ...
... The Friedländer synthesis is the chemical reaction of 2-aminobenzaldehydes with ketones to form quinoline derivatives. It is named after German chemist Paul Friedländer (1857-1923). The simple and straightforward method for the synthesis of polysubstituted quinolines was reported by Friedländer in 1 ...
Amines - hisham
... 1. Zeisel’s method (for Alkoxy OR, and N-Alkyl): alkoxy group is treated with hydrogen iodide and the alkyl halide formed is further treated with silver nitrate to precipitate silver iodide, collected and weighed ...
... 1. Zeisel’s method (for Alkoxy OR, and N-Alkyl): alkoxy group is treated with hydrogen iodide and the alkyl halide formed is further treated with silver nitrate to precipitate silver iodide, collected and weighed ...
Petasis reaction
The Petasis reaction (alternatively called the Petasis borono–Mannich (PBM) reaction) is the chemical reaction of an amine, aldehyde, and vinyl- or aryl-boronic acid to form substituted amines.Reported in 1993 by Nicos Petasis as a practical method towards the synthesis of a geometrically pure antifungal agent, naftifine, the Petasis reaction can be described as a variation of the Mannich reaction. Rather than generating an enolate to form the substituted amine product, in the Petasis reaction, the vinyl group of the organoboronic acid serves as the nucleophile. In comparison to other methods of generating allyl amines, the Petasis reaction tolerates a multifunctional scaffold, with a variety of amines and organoboronic acids as potential starting materials. Additionally, the reaction does not require anhydrous or inert conditions. As a mild, selective synthesis, the Petasis reaction is useful in generating α-amino acids, and is utilized in combinatorial chemistry and drug discovery.