31. Name and give the molecular formula for the alkane with a molar mass of
a. 44g/mol Scandium SC
b 72 g/mol Germanium GE
32. What does -ane imply about the carbon-carbon bonding in hexane
It indicates the number of carbon atoms in the backbone carbon chain.
33.Are the following three molecules isomers of one another? Explain your answer.
Yes because it is all the same formula, but just in different structure
34. Draw structural formulas for at least three structural isomers of C9H20
Look at drawing
35. What is the shortest-chain alkane that can demonstrate isomers?
Not sure
36. An unbranched hydrocarbon molecule can be represented as a linear chain or as a zig-zag chain. Explain in what way both represent
They are both a hydrocarbon molecule but it doesn't matter what shape its in
37. Drea two hexane structural isomers, one a straight-chain molecule and the other a branched- chain molecule.
Look at drawing
b. Which of the two isomers you grew would have the lower boiling pint? Explain your choice.
The straight chain one had a lower boiling point, because the bonds weren't that strong.
The branch chain structure had the higher boiling point, because it has more, and stronger bonds
38. Which of each pair of the following hydrocarbon molecules would have the lower boiling pint? In each case describe your reasoning
A. A long straight chain because it has tighter bonds
b. A long branch chain because it has a lot stronger intermolecular bonds
c. Short branched chain, straight chains have stickier bonds
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