Unformatted text preview: 11/6/2016 Green Organic Chemistry: CHEM2071001 Fall 2016 Green Organic Chemistry
Due Nov 7 at 6am
Allowed Attempts 2 Points 25 Questions 25 Available until Nov 7 at 6am Time Limit 25 Minutes Take the Quiz Again Attempt History LATEST Attempt Time Score Attempt 1 16 minutes 24 out of 25 Correct answers are hidden.
Score for this attempt: 24 out of 25
Submitted Nov 6 at 8:46pm
This attempt took 16 minutes. Question 1 1 / 1 pts There are 12 principles of green chemistry. Use catalysts is one of them and it means: Do not use/diminish usage of stoichiometric reagents Use special agents Use stoichiometric reagents Use limiting reagents Question 2 1 / 1 pts Once heating is done do you open the flask immediately? I can turn off sand bath and immediately open it No wait to cool first 1/9 11/6/2016 Green Organic Chemistry: CHEM2071001 Fall 2016 Yes it is safe Ask your TA Question 3 1 / 1 pts How many mol 9(hydroxymethyl)anthracene would you use? 0.001 mol 1/1000 mol 1/10000 mol 0.1 mol Question 4 1 / 1 pts What does a rise in temperature on your thermometer mean in this lab? Sample is melting Solvent is distilling It's about to catch on fire The reaction is exothermic Question 5 1 / 1 pts NMethylmaleimide is corrosive. If contact with skin occurs: Wash affected area with water an soup Wash affected area with water and soap 2/9 11/6/2016 Green Organic Chemistry: CHEM2071001 Fall 2016 Do not wash with water Wash affected area with water Question 6 1 / 1 pts How long does the reaction take? Long time Half an hour 79 minutes 1 h Question 7 1 / 1 pts How do you collect the product at the end of this experiment? Through reflux Through hot filtration Through simple distillation Through vacuum filtration Question 8 1 / 1 pts What is the general definition of a green organic chemistry reaction? Alergic reaction to greens Environmentally friendly, cheap and safe chemicals used and conducted at normal conditions 3/9 11/6/2016 Green Organic Chemistry: CHEM2071001 Fall 2016 Where the product is green A reaction that requires a lot of chemicals Question 9 1 / 1 pts There are 12 principles of green chemistry. Maximize Atom Economy is one of them and it refers to: Minimum production from the reagents used Maximum production from the catalysts used Maximum production of waste Maximum production from the reagents used Incorrect Question 10 0 / 1 pts What is the purpose of the round bottom flask? Catches any portions of the solvent which boils out the setup It is the reaction pot CORRECT ANS It is recondenses the gasses into liquid again To measure things in it Question 11 1 / 1 pts Who is credited with the saying "Unless someone like you cares a whole awful lot, nothing is going to get
better. It’s not.”? Dr. Ruychev 4/9 11/6/2016 Green Organic Chemistry: CHEM2071001 Fall 2016 Dr. Livant Dr. Seuss Dr. Curtiss Question 12 1 / 1 pts If water drips from the paper towels into the sand bath: Will not affect the yield of the reaction, as long as I make sure it refluxes for the specified time Will evaporate Will lower the temperature of the sand and slow down the reflux All true Question 13 1 / 1 pts How strong vacuum do you have to apply to your sample: As hard as I can pull Until you see the "breeze" in the mother liquour So that the whole sample is sucked in the vacuum line Until you see the "breeze" in the reaction mixture Question 14 1 / 1 pts To maximize crystal formation from a solution one should: Scratching the inside of the reaction tube with spatula 5/9 11/6/2016 Green Organic Chemistry: CHEM2071001 Fall 2016 Scratching the inside of the reaction tube with nail Scratching the inside of the reaction tube with wooden stick Scratching the inside of the reaction tube with glass rod Question 15 1 / 1 pts To what setting is the sand bath's rheostat set? 120 80 60 10 Question 16 1 / 1 pts The DielsAlder reaction is a reaction between: Diene and dienophobe Diene and dienophile Dienophile and claustrophobe Diels and Alder Question 17 1 / 1 pts What kind of towel must be wrapped around your apparatus to keep it cool? Brown paper towel soaked in hot water 6/9 11/6/2016 Green Organic Chemistry: CHEM2071001 Fall 2016 The cloth towel White paper towel soaked in icecold water Brown paper towel soaked in icecold water Question 18 1 / 1 pts What is 80% of 25? 1/4 80 20 100 Question 19 1 / 1 pts If not kept cooled, the paper towels will become: Dry Hot All true Insulation Question 20 1 / 1 pts What kind of water must be used in your reaction solution? Filtered water 7/9 11/6/2016 Green Organic Chemistry: CHEM2071001 Fall 2016 Tap water Deionized Distilled Question 21 1 / 1 pts What flask are you going to use for reaction pot? 15 mL beaker 15 mL Erlenmayer flask 15 mL round bottom flask 10 mL round bottom flask Question 22 1 / 1 pts If the sand bath gets knocked down: All true Return to the sand back in the sand bath Use a small scoop and a broom to collect the spilled sand Wait for the sand to cool down Question 23 1 / 1 pts There are 12 principles of green chemistry. Prevention is one of them and it refers to: I have no idea 8/9 11/6/2016 Green Organic Chemistry: CHEM2071001 Fall 2016 Prevent low waste generation Minimization of waste and sideproduct's production Maximum waste production Question 24 1 / 1 pts Where is the sand bath's jack plugged in? 10 Amp In my iPhone ther is an app for that Regular power supply 20 Amp Question 25 1 / 1 pts If two reactions produce the same final product, but reaction B is less expensive and produces less waste,
would you call it "greener" compared to reaction A? Yes, reaction B is "greener" than A Yes, reaction A is "greener" than B No, because this is politically incorrect No Quiz Score: 24 out of 25 9/9 ...
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