hello guys! welcome to kem korner!



Hello guys! Welcome to KEM KORNER!

This page, I hope, will help you obtain a deeper understanding and appreciation of basic and not-so-basic chemistry concepts. For those looking for entertainment, there will be bits of that here although I'm not so sure yet how I'll go about this "entertainment" thing. But I assure you that this blog will be filled with links, downloadables and test-yourself questions that will help you, in some way, improve your understanding of the world of chemistry.

Suggestions, contributions and reactions, violent or otherwise, are also welcome... :)


Tuesday, January 5, 2010

For My Organic Chemistry Class (BSND1)

Lab Activity No. 5: Test for Unsaturation: Differentiating Alkanes from Alkenes

Because an alkene contains at least 1 double bond in its structure, it is classified as unsaturated. Bromine (Br2) is used to determine whether an unknown hydrocarbon is saturated (alkane) or unsaturated (alkene or alkyne). The following video clip shows the difference in the manner cyclohexane and cyclohexene react with bromine.





Questions: (Please use 1 short-sized bond paper to copy and briefly answer the following questions.)

1. Describe the difference in the reactions of cyclohexane and cyclohexene with bromine. What does this difference imply?

2. What kind of reaction occurs when Br2 is reacted with cyclohexene?

3. Complete the following reactions. Illustrate and name the structures of the product/products formed.

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