[CHEM] Tutorial 1 - Questions PDF

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CHEM 281

Tutorial Problem Set No. 1

1. Please draw the Lewis structures for the following compounds (identify atoms that are charged). For B, C, N, and O indicate whether these atoms are sp3, sp2 or sp. _

BH3

CO2

CH3COOH

CH3COCH2

CH3CHO

CH3OH2+

NH3CH2COO

CO

2. Draw stick structures for the following compounds: CH3CH2CH2COOH

(CH3)3CCH2OH

CH3CH2CHCHCH2CH3

NH2CH2CH2OCH2CH2CH3

3. Indicate the hybridization of B, C, N or O in each of the following structures: B H B H

C

N

O

H

H

H

H

C H

H

N

H

H H

H

C

H

O

N H

H

H

H

H

C

N

H

O H

H

H H

H

H

H

H

H

O

H

4. In the following structures, which C-H bonds will be shortest, which will be strongest? Why? H

H

C

C

H

H

H H

H

H C

H

C

H

C

C

H

H

5. Please classify the following bonds as non-polar, or polar (note: a bond with ΔE.N....