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When KMnO acts as an oxidizing agent when it comes in contact with 1 butanol, 2 butanol and t- butyl which of these agents will become primary, secondary or tertiary alcohol?

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Introduction

Oxidizing alcohols By: Toufa Bouchouar Partner's name: Adrian Date: March 20, 2006 Teacher name: Ms. Sommer When KMnO acts as an oxidizing agent when it comes in contact with 1 butanol, 2 butanol and t- butyl which of these agents will become primary, secondary or tertiary alcohol? Introduction: Alcohols are the family of compounds that contain one or more hydroxyl (-OH) groups. They are also represented by the general formula R-OH. Alcohols are important in organic chemistry because they can be converted to and from many other types of compounds. Reactions with alcohols fall into two different categories Oxidation in organic chemistry always involves either the addition of oxygen atoms or the removal of hydrogen atoms. Whenever a molecule is oxidized, another molecule must be reduced. Therefore, these reactions require a compound that can be reduced. These compounds are usually inorganic. They are referred to as oxidizing reagents. With regards to alcohol, oxidizing reagents can be strong or weak. Weak reagents are able to oxidize a primary alcohol group into an aldehyde group and a secondary alcohol into a ketone. Strong reagents will further oxidize the aldehyde into a carboxylic acid. ...read more.

Middle

I ml of a clear layer on top with a reddish copper brown Inside the test tube 1:3ml of KMnO, then 3ml of 2 butanlo, and then 2 ml acid t- butyl alcohol 27 second stopped reacting there was not much of a reaction stayed dark purple Inside the test tube 3:3 of ml KMnO, then 3ml of t-butyl, and then 2ml of acid 1 butanol 4 second turned light pink then changed to light purple and then looked almost red, 11seconds it turned copper brown, at 17 seconds turned a nasty brown, 30 seconds three layers formed, at 44 seconds 4 layers came to be and it turned a light brown on top dark brown in the middle and light brown on bottom Inside the test tube 2:3 mlof KMnO, then 3 ml of 1- butanol, and then 2ml of acid KMnO At 29 seconds stayed a little lighter purple Inside the test tube 3ml of KMnO, then 3ml of water and then 2 ml of acid Analysis: The alcohols that reacted with the potassium permanganate KMnO was 1 and 2 butanol. 1 butanol was a primary alcohol which had a reaction time of 44 seconds and started with a primary alcohol then went to an aldehyde and finally a carboxylic acid. ...read more.

Conclusion

The first possible source of error could be when adding the drops of acid or any type of solution required there could be more drops coming out of the stoppers than needed. A way to fix this problem for next time is to be careful when adding the drops in the tests tubes. Second possible source of error could be when not stopping the stop watches at the right time when the test tubes reactions are done. A way to fix this problem is for next time to be more alert and watch for the solution to be finished and stop it on time. Third possible source of error could be when thinking the solution was done and ending up stopping the reaction type with the stop watch. A way to fix this problem for next time is to make sure and waiting a little longer after thinking the solution is done to record the final results. Conclusion: In conclusion my hypothesis was right. 1 butanol did end up being the primary alcohol, the 2 butanol ended up being the secondary alcohol and the t- butyl was the tertiary alcohol. The time of reaction for all were as presented for each alcohol. Primary alcohol was the longest to react, then the secondary was second and the tertiary had the shortest reaction time. ...read more.

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