11 Asa Chemistry N S Organic Chem Basics Lessonplan

Instructional Objectives

The following is for Nitrogem and Sulphur
(a) explain the lack of reactivity of nitrogen
(b) describe and explain:
(i) the basicity of ammonia
(ii) the structure of the ammonium ion and its formation by an acid-base reaction
(iii) the displacement of ammonia from its salts
(c) describe the Haber process for the manufacture of ammonia from its elements, giving essential operating conditions, and interpret these conditions (qualitatively) in terms of the principles of kinetics and equilibria
(d) state the industrial importance of ammonia and nitrogen compounds derived from ammonia
(e) state and explain the environmental consequences of the uncontrolled use of nitrate fertilisers
(f) state and explain the natural and man-made occurrences of oxides of nitrogen and their catalytic removal from the exhaust gases of internal combustion engines
(g) explain why atmospheric oxides of nitrogen are pollutants, including their catalytic role in the oxidation of atmospheric sulfur dioxide
(h) describe the formation of atmospheric sulfur dioxide from the combustion of sulfur contaminated carbonaceous fuels
(i) state the role of sulfur dioxide in the formation of acid rain and describe the main environmental consequences of acid rain
(j) state the main details of the Contact process for sulfuric acid production
(k) describe the use of sulfur dioxide in food preservation

The following is for Organic Chemistry

(a) interpret, and use the general, structural, displayed and skeletal formulae of the following classes of compound:
(i)alkanes, alkenes and arenes
(ii)halogenoalkanes and halogenoarenes
(iii) alcohols (including primary, secondary and tertiary) and phenols
(iv) aldehydes and ketones
(v) carboxylic acids, esters and acyl chlorides
(vi) amines (primary only), nitriles, amides and amino acids
(b) interpret, and use the following terminology associated with organic reactions:
(i) functional group
(ii) homolytic and heterolytic fission
(iii) free radical, initiation, propagation, termination
(iv)nucleophile, electrophile
(v) addition, substitution, elimination, hydrolysis
(vi) oxidation and reduction
(i) describe the shapes of the ethane, ethene and benzene molecules
(ii) predict the shapes of other related molecules
(d) explain the shapes of the ethane, ethene and benzenemolecules in terms of σ and π carbon-carbon bonds
(e) describe structural isomerism, and its division into chain, positional and functional group isomerism
(f) describe stereoisomerism, and its division into geometrical (cis-trans) and optical isomerism
(g) describe cis-trans isomerism in alkenes, and explain its origin in terms of restricted rotation due to the presence of πbonds
(h) explain what is meant by a chiral centreand that such a centre gives rise to optical isomerism
(i) identify chiral centres and/or cis-trans isomerism in a molecule of given structural formula
(j) deduce the possible isomers for an organic molecule of known molecular formula
(k) deduce the molecular formula of a compound, given its structural, displayed or skeletal formula

Teaching process

  • Nitrogen and sulphur is just a repetition of 10th grade chemistry
  • Introducing students to nuances of organic chemistry
  • Using molecular models whenever necessary

Suggested Reading

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