1.2 Amount of Substance Flashcards
1
Q
What is the Equation for moles?
A
2
Q
What is Avogadro’s constant?
A
3
Q
What is the ideal gas equation?
A
4
Q
How do you work out empirical formulas?
A
- divide % by Ar to get moles
- divide each number of moles by the smallest mole number
- Gets you the ratio of the elements in the element
5
Q
What is theoretical yield?
A
- the mass of product that should be formed in a chemical reaction
6
Q
What is the equation for % yield?
A
7
Q
What is atom economy?
A
- the measure of the proportion of reactant atoms that become part of the desired product (rather than by-products) in the balanced chemical equation.
8
Q
What are the economical advantages of high atom economy?
A
- company will have less waste meaning they will spend less on separating the desired product from the waste.
- waste products also need to be disposed of safely, which increases cost further
9
Q
What are the environmental and ethical advantages of high atom economy?
A
- process will use fewer raw materials and produce less waste.
- better for the environment because the process is more sustainable and reduces amount of harmful chemicals disposed as waste
10
Q
How do you calculate atom economy?
A
