代做CHEM191 ASSIGNMENT 8代写Web开发

日期：2025-02-05 05:22

CHEM191

ASSIGNMENT 8

Due: Monday 3rd February

The assignment is in two parts and worth a total of 30 marks.

Part A - A useful organic compound (10 marks)

Choose one of the compounds below (or you can choose your own organic molecule but check with Tylah first) and write about its discovery or synthesis and its usefulness to society (focus on one application). You should attempt to find a link between the molecule and its usefulness. You should consult and reference at least 3 different sources and collate the information into a coherent,

concise paragraph which includes:

• The molecular formula

• The structural formula

•    The functional group/groups in the molecule

•    A short summary (300 words) of the usefulness (linking the application to the structure) and the discovery or synthesis of the compound.

Vitamin C, caffeine, nylon, aspirin, glucose, penicillin, acetic acid, sodium stearate, rubber, DDT, morphine, progestin, polythene, quinine

Please note: you are required to write a “summary” so this means that you should collect ideas from various references and combine the ideas in your own words. Your work will be checked for plagiarism so be sure to present your ideas in your own words.

The marking rubric for the writing is shown below.

	3 points	2 points	1 point
Molecular structure		Molecular formula, structure and functional groups are correctly documented	Most of molecular formula, structure and functional groups are correctly documented
Discovery or		Comprehensive details	Details of the discovery
synthesis		of the discovery or synthesis are documented	or synthesis are sketchy
Usefulness	Details of a specific use are clearly documented with a link to the molecular structure	Details of a specific use are clearly documented	Details of a specific use are documented
Writing Skills		Most of the following: Clarity, Precision, Concision, excellent spelling and grammar AND written in own words	Poorly written - needs improvement.
References			At least three references are listed and consulted

Part B - (20 marks)

Provide answers to each of the following questions.

Q1 Identify the functional groups (i) to (iv) in the following molecule:

(2 marks)

Q2 Give the systematic names for the following organic molecules:

(4 marks)

Q3 Write structural formulae for the following organic molecules:

a) 3-ethylcyclohexanol

b) pentyl propanoate

c) 2-bromo-3-methylpentanoic acid

d) 3,4-dimethylpentan-2-amine

(4 marks)

Q4 Draw all the structural formulae of alcohols that have the molecular formula C5 H12O. Classify the isomers as primary, secondary, or tertiary.

(3 marks)

Q5 Determine which reagents A to C and reactant D that will bring about the given transformations and draw the structural formula of PRODUCT X

Q6 Draw the structural formulae for the organic products of the following reactions and determine whether the reaction is addition, substitution, elimination, acid-base or oxidation-reduction (NOTE: there are two products that form. for b)).

(4 marks)