Flashcards in C3c Deck (10):
How is a high atom economy good for profits?
-decreasing amount of reactants wasted, so money is saved
How is a high atom economy good for the environment?
-saves resources as resources are not wasted, and stops reactions from being unsustainable
What is percentage yield?
-comparison of actual yield and predicted yield
*not all reactants react to make product
What is atom economy?
-tells you how much mass of reactants was wasted
Why a yields never 100%?
-some product or reactant always lost along the way
How does transferring liquids cause a loss of yield?
-may lose some liquid when transferring from one container to the next, even if nothing spills
-some always gets left behind on inside surface of last container
What are the benefits of a high percentage yield?
-reduce waste products
How does filtration reduce percentage yield?
-filtering liquid to remove solid particles you always lose a bit of liquid or solid
*if you want to keep liquid, you lose the bi that remains with the solid and filter paper
*if you want to keep solid, some of it always gets left behind when you scrape it off filter paper
How does evaporation reduce percentage yield?
-liquids evaporate all the time
-even more when heated