Hwa Chong Institution (High School) Secondary 4 End of Year Examinations Chemistry Revision Notes List of topics: 1. Atomic Structure 2. Separation Techniques 3. Chemical Bonds and Bonding (Ionic‚ Covalent) 4. Metals 5. Properties and structures of compounds 6. Qualitative Analysis 7. Acids‚ Bases and Salts 8. Chemical Periodicity 9. Chemical Calculations 10. Air and Environment 11. Electrochemistry (Including Redox reactions) 12. Thermochemistry 13. Rates of Reaction 14. Chemical
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Experiment 3: SN1 – Report Sheet Last Name: Abbassi-Mohadjel | First Name: Nora | Date: OCT. 26‚ 2012 | Section Number: 005 (Friday->1:35-5:35pm) | Objective: 1 mark (What is the purpose of this experiment?) In this lab‚ spectrochemical technique was used to determine qualitively the product of a reaction. The purpose was to learn what a SN1 reaction was with combining 2‚5-dimethyl-2‚5-hexanediol and HCl and to learn how to use an infrared spectrum for analyzing the reaction
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The goal of this experiment was to synthesize dibenzalacetone by aldol synthesis. The name ’Aldol synthesis’ was taken from the words ’aldehyde and alcohol’. This is because the product of this reaction contains both an aldehyde and alcohol. The carbon-carbon bond-forming reaction is referred to as aldol addition. An aldol condensation yields many species of products if the reactant is more than one. Therefore‚ the aldehyde has to react with itself to yield one product. Procedure: Followed according
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dipole. 6 Structure and Properties of Alcohols •Alcohols have an H atom bonded to an O atom‚ making them capable of intermolecular hydrogen bonding. •All of these properties give alcohols much stronger intermolecular forces than alkanes and alkenes. 7 Structure and Properties of Alcohols •Therefore‚ alcohols have higher boiling and melting points than hydrocarbons of comparable size and shape. stronger intermolecular forces higher boiling and melting point 8 Structure and Properties
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Preparation of t-Butyl-Chloride March 8 & 15‚ 2012 Theory: Alkyl halides can be synthesized when alcohols react with hydrogen halides. An alkyl halide is a halogen-substituted alkane‚ and a hydrogen halide is a compound consisting of a hydrogen bonded to a halogen (H-X). Alkyl halides are classified as primary‚ secondary‚ or tertiary depending on the number of alkyl substituents directly attached to the carbon bearing the halogen atom. The purpose of this laboratory experiment was to prepare
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Intensity s m m m s s s m w w m-w m-w m-w s s s s s s s Alkanes -CH3 -CH2Alkenes (stretch) (bend) (bend) (stretch) CHARACTERISTIC INFRARED FREQUENCIES (bend) Aromatic (stretch) (out-of-plane bend) Alkyne Aldehyde C=C C C C=O (stretch) Alkene (stretch) Aromatic (stretch) Alkyne (stretch) Aldehyde (stretch) Ketone (acyclic) Carboxylic Acid Ester Amide Anhydride Alcohols‚ ethers‚ esters carboxylic acids Alcohols‚ phenols Free H-bonded Carboxylic acids Primary and secondary amines Nitriles
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guess paper 1. Express the rate of following reaction in terms of disappearance of hydrogen in the reaction. 3H2(g) + N2(g) 2NH3(g) 2. What is peptisation? 3. Write Reimer Tiemann reaction. 4. Why is CO stronger ligand that Cl-. 5. Write structure of 2-(2-Bromophenyl)butane. 6. Complete the reaction C6H6+R COCl 7. Why pentahalides more covalent than trihalides? 8. What is difference between nucleoside and nucleotide? 9. Explain the following- (a) Gattermann Koch
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Australian College of Business and Technology CHE001- CHEMISTRY UNIT OUTLINE – Trimester 1‚ 2013 Module Name: | Chemistry | Module Code: | CHE001 | Nominal Duration: | 52 Hours (4 hours/week | Discipline: | Stream Module * Engineering * Science (Health Sciences) * Science (Physical Sciences) | Module Purpose: | This module introduces the study of matter and its interactions thereby providing a link with other branches of natural science. It’s designed to assist students
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Name : ___________ General Instructions: 1. Revise UNITS 1 to 5 2. Solve numerical problems concerning UNITS 1‚2 ‚3 and 4 from previous (2010-2013 ) Sample /CBSE question papers . 3. Prepare a project report on any of the following suggested Investigatory projects. TOPICS FOR PROJECT WORK 1. Study of quantity of casein present in different samples of milk. 2. Extraction of essential oils present in Saunf (aniseed)
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CH4(g) ΔHθc of C ΔHθc CH4 + 2ΔHθcH2 CO2 (g) + 2H2O(l) 7. Which is exothermic bond making or bond breaking? Bond making exo 8. Give an example of an i. Alkane Butane C4H10 ii. Alkene Ethene C2H4 iii. Cycloalkane Cyclohexane C6H12 iv. Alcohol Ethanol C2H5OH v. Ether Methoxy methane CH3OCH3 9. What does an aromatic compound contain? Note all other compounds are aliphatic
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