trivia

Transcript

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POP QUIZ Green Chemistry Style!

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You will be quizzed on...

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#1 Principles of Green Chemistry

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#2 Organic Chemistry II Mechanisms

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#3 How they relate to each other!

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How many principles of green chemistry are there?

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A. 15 B. 10 C. 12

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Dr. Stockdill I think I know! Is there  12 principles of green chemistry?

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Yes, you are correct Adam S! Can you tell me one of them?

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Prevention. It is better to prevent waste formation than to treat it after it is formed.

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Yes, the first one is...

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Question #2 What organometallic reagent is partnered with Suzuki coupling?

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A. Boranes B. Stannanes C. Alkynyl Copper

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My answer is boranes.

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Yes, you are correct Breanna S! Can you tell me which green chemistry principles the Suzuki coupling relates to?

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Yes, it relates to...

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Principle #9: Catalysis Catalytic reagents (as selective as possible) are superior to stoichiometric reagents.

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Question #3 What is the correct equation for atom economy?

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A. Atom Economy= (Total Mr of Desired Products/Total Mr of All Reactants) X 100 B. Atom Economy= (Total Mr of Desired Products X 100) / Total Mr of All Reactants

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The correct equation is Atom Economy= (Total Mr of Desired Products/Total Mr of All Reactants) X 100

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You are correct Alyssa W. Can you explain why a high percentage atom economy is better?

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I can explain it using these reactions...

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+

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+

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Reaction 1 - low atom economy and creates waste.

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Reaction 2 - high atom economy and no waste .

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+

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Therefore, a higher atom economy is good because it reduces the amount of waste we have from a reaction.

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Question #4 In Grignard reactions, magnesium is a common reagent, it is well liked because it can be reused. Which green principle does this relate to?

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A. #7 Renewable Feedstock B. #8 Reduces Derivatives C. #10 Design for Degradation

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The correct answer is A) Principle #7 Renewable Feedstock.

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Good job Kelsey P! What are some other recyclable metals?

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Some other metals that can be reused in reactions are....

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ZINC

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TIN

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BRASS

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MAGNESIUM

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LEAD

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Question #5 What are the correct steps when doing a Fischer esterification mechanism?

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A. Activate, Adjust Protons, Add, Kick Out LG, Adjust B. Add, Activate, Adjust Protons, Kick Out LG, Adjust C. Activate, Add, Adjust Protons, Kick Out LG, Adjust

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I believe the answer is C. Activate, Add, Adjust Protons, Kick Out LG, Adjust. Is that correct Dr. Stockdill?

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Yes, you are right Adam S! Do you know what is formed from a Fischer esterification?

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Yes, I do know. It is an ester that is formed from carboxylic acid by heating it with an alcohol in the presence of a strong acid as the catalyst

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O

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R

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O-R

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Question #6 Rearrangement reactions are known to involve reorganization of the atoms in the molecule with nothing being added, eliminated or substituted. What green principle does this follow?

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A. #1 Prevention B. #2 Atom Economy C. #10 Design for Degradation

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The answer is Principle #2: Atom Economy. These types of reactions are environmentally preferable because they produce no waste. They result in 100% Atom Economy.

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Question #7 Sucrose, Lactose and Maltose are all considered disaccharides. What do they have in common?

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A. 2 sugar units B. multiple sugar units C. 4-10 sugar units

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I know this one! The correct answer is 2 sugar units. Is this correct Dr. Stockdill?

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Right on track Alyssa W! If they all have 2 sugar units, what makes them different from each other?

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The differences are in each molecules stereochemistry, linkages and glycosidic bonds!

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Question #8 Catalysts are extremely important in green chemistry, which of the following are true about catalysts?

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A. Provide faster reactions and less steps. B. Allow us to reduce waste and byproducts. C. Can be reused over and over. D. All of the above.

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It is all of the above! I know this because....

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True catalysts are used to increase the reaction rate without getting consumed in the process. They do this by lowering the activation energy or changing the reaction mechanism. They also allows to control a reaction which in turn allows us to be able to reduce the creation of undesired byproducts and energy consumption of a reaction. Due to being unaffected by the reaction, the can be reused over and over again.

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All of the above is correct because...

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Correct! I think you all have aced this pop quiz. Congrats class!

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It seems our time is up! I will see you all tomorrow!

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See you later Dr. Stockdill!

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A Short Film By: Adam S, Breanna S, Kelsey P & Alyssa W