Empirical and molecular formula + balanced equations and associated calculations Flashcards
What is the empirical formula?
The simplest whole number ratio of atoms in each element in a compound.
What is the molecular formula?
the actual number of atoms of each element in a compound.
How to work out the multiplier?
mr of molecule / empirical mr = multiplier
Equation for percentage yield?
experimental mass / theoretical mass x 100
Equation for atom economy?
mr of desired product / mr of reactant x 100
what are the economic, ethical and environmental advantages for society by producing a high atom economy?
for environment: uses less natural resources therefore using less energy
economic: produces little/no waste product therefore it is economically viable
The importance of percentage yield?
To see and increase the conversion of reactants to products
The importance of atom economy?
To minimise the amount of by-product
