Lab 01 Molecular Structure Assignment student version Sept 2021 PDF

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Lab 01 Assignment: Molecular Structure September 2021 Name

Student #

Lab Day

Time

Instructions: This assignment must be completed by hand in one of three ways: Method 1: If you have access to a printer, you can print out the assignment PDF file on regular white paper. Then complete the assignment by hand with a pen or pencil. Then convert your completed assignment to a new pdf document which is then submitted in CANVAS (remember you must compile all the pages into ONE pdf document. Method 2: If you do not have access to a printer, then on regular paper you must enter your student details (that is name, student #, Group #, online session time), followed by Question 1 and written answer, Question 2 and written answer and so forth. Then convert your completed assignment to one pdf document which is then submitted in CANVAS. Method 3: If you have access to a touch sensitive laptop with stylus, you may download the assignment PDF file and make entries with your stylus. This will also be accepted as a hand-written assignment. Then resave the completed assignment as PDF file to be submitted online. For example, you can use OneNote software on a touch sensitive laptop.

Remember, it is important to convert your assignment to one pdf file. CANVAS will only allow you to submit one file. You must not submit multiple files when submitting your completed assignment.

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Question 1. Draw the Lewis structure and Line angle structure of C6H6 (also known as Benzene). 2 marks

Question 2. Draw the Lewis structure and Line angle structure of a compound with molecular formula CBr3CH2CH2CH2CH2OH. 2 marks

2

Question 3. For molecule with molecular formula CH3CO2H (also known as acetic acid), 1. Draw Lewis Structure. 2. Indicate electron pair geometry around the two carbon atoms and the two oxygen atoms (that is indicate whether geometry is linear, trigonal planar or tetrahedral). 3. Indicate some of the important bond angles in the molecule. 3 marks

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Question 4. For the compound with molecular formula (CBr3)2CNH 1. Draw Lewis Structure. 2. Indicate electron pair geometry around the two carbon atoms and nitrogen atom (that is indicate whether geometry is linear, trigonal planar or tetrahedral). 3. Indicate some of the important bond angles in the molecule.

3 marks

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Question 5. For the compound with molecular formula (CF3)2O 1. Draw Lewis Structure. 2. Indicate electron pair geometry around the two carbon atoms and the one oxygen atom (that is indicate whether geometry is linear, trigonal planar or tetrahedral). 3. Indicate some of the important bond angles in the molecule.

3 marks

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Question 6. Draw the resultant dipole moment for the molecule (CF3)CH2(CF3) on the given structure below. 2 mark

Question 7. Draw the Lewis structure of an alkene with molecular formula C3H5Br 2 marks

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Question 8. Draw a Lewis structure of an alkyne with molecular formula C3H3F 2 marks

Question 9. Draw a Lewis structure of an acid chloride with molecular formula C2H3ClO 2 marks

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Question 10. Draw a Lewis structure of a carboxylic acid with molecular formula C3H6O2 2 marks

Question 11. Draw a Lewis structure of an amine with molecular formula C2H7N 2 marks

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Question 12. Draw a Lewis structure of an amide with molecular formula C2H5NO 2 marks

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Question 13 (8 marks) 2 marks each for correct structure. On a separate sheet of paper draw all possible structural isomers (also known as constitutional isomers) with the molecular formula C4H10O. Then redraw these isomers according to whether they are primary, secondary or tertiary alcohols, or an ether in the boxes given below. Also, draw all structures as line angle formula.

a. primary alcohol

b. secondary alcohol

c. tertiary alcohol

d. ether

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Question 14. In the provided boxes given, label each bond in terms of the overlapping orbitals involved (sp3, sp2, sp, s, p) and the bond that is formed (whether  or ). 5 marks

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Question 15. All lone pairs are correctly drawn in the following Lewis structure. You must assign (draw in) the missing formal charge/s. (2 marks)

Question 16. All lone pairs are correctly drawn in the following Lewis structure. You must assign (draw in) the missing formal charge/s. (2 marks)

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Question 17 (6 marks) Draw the resonance contributing structure that results from the movement of electrons as indicated by the curved arrow. Be certain to show all valence electrons and formal charges. [Note: For this question, draw resonance structures as Lewis structures, see example]. Example

Question 17 (a)

Question 17 (b)

Question 17 (c)

This completes the assignment with 17 questions and worth 50 marks.

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