C5.1 Flashcards
(8 cards)
What is yield?
Mass of product made
What is theoretical yield
Maximum mass of product made
How do you work out theoretical yield?
Mass of limiting reactant
————————————————- X Sum of Mr for products
Sum of Mr for limiting reactant
What affects percentage yield?
- reactants may react in different way than expected
- reaction may not go to completion
- may lose some of the product when separated to purify
What is atom economy?
How many atoms in a reactant form from desired product
What is reaction pathway?
Reaction/ series of reaction to make a particular substance
What is a by product?
Substance formed in reaction, an addition to desired product
State the advantages and disadvantages of a by product
Advantages : can be useful and be able to be sold (money). It also increase atom economy.
Disadvantages: can be toxic and little use. Therefore less desirable.