Titration Process in which a measured amount of a solution is reacted with a known volume of another solution (one of the solutions has an unknown concentration) until a desired EQUIVALENCE POINT is reached
Equivalence Point The point in a titration where the ratio of the moles of each species involved exactly equals the ratio of the coefficients of the species in the balanced rx equation
Example: If 25.9 mL of H 3 PO 4 with an unknown molarity react with 34.6 mL of 0.400 M KOH according to the rx, what is the molarity of the H 3 PO 4 ?
H 3 PO 4 + KOH K 3 PO 4 + H 2 O 25.9 ml 34.6 ml # M 0.400 M 25.9 ml 34.6 ml # M 0.400 M
% Yield = mass of product obtained x 100% mass of product expected
% Purity = mass of pure reactant x 100% mass of impure reactant