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Flashcards in Reacting Quantities Deck (7)
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The ratio of the amount, in moles of each substance
Used to find quantities of reactants required to prepare required quantities of a product


How to calculate masses from equations and stoichiometry

Calculate the moles of the known mass
Mole ratio and convert back
Can involve volumes and concentrations


How to calculate percentage yield

Percentage yield=actual yield/ theoretical yield x100
Can do it with both moles or mass


Limiting reagent

Reactant that is not in excess that will be completely used up and stop the reaction


How to calculate the which reactant is the limiting one

Use mole ratio


Atom economy

Measure of how well atoms have been utilised
Important for sustainability as they make best use of natural resources


Atom economy equation

Sum of molar mass of desired products/ sum of molar masses of all products x100= atom economy