Quantitative Chemistry Flashcards
How much does 1 mole of a substance weigh?
The mass of one mole of a substance in grams is numerically equal to its relative formula mass
What is the equation for moles?
Moles = Mass ÷ Mr
What is a limiting reactant?
the reactant that is used up / not in excess
What is percentage yield?
How much product is actually made compared with amount of product that was expected
What is the equation for percentage yield?
Percentage yield = (Amount of product produced ÷ Maximum amount of product possible) x 100
What is theoretical yield?
The maximum amount of product expected from the reaction
What is the actual yield?
The mass of product that is actually obtained
What is atom economy?
A measure of the efficiency of a chemical reaction
What is the equation for atom economy?
Atom Economy = (Mass of desired product from reaction ÷ sum of Mass of all reactants) x 100
What is a solvent?
A substance that dissolves other substances
What is a solute?
A substance dissolved by a solvent?
What is the equation for concentration?
Concentration = N.O mole ÷ Volume
