Doing titrations Flashcards
a titration is
a practical with the aim of measuring the volumes of two solutions that react together, and using the results to calculate the concentration of one of the solutions
titrations are sometimes called
volumetric analysis
all of the acids and bases you will use in titrations are
colourless, as are the products
as the acids and bases you will use are colourless, as are the products, we use
an indicator
the equivalence point is
the point at which there are exactly the right amounts of substances to complete the reaction
the end point is
the point at which the indicator just changes colour. Ideally, the end point should coincide with the equivalence point
the meniscus is
the curving of the upper surface in a liquid in a container. the lowest horizontal part of the meniscus should be read
the titre is
the volume added from the burette during a titration
concordant titres are
those that are close together (usually within 0.20 cm3 of each other)
methyl orange is…….in acid
red
methyl orange is ……………in alkali
yellow
methyl orange should be used in titrations with
strong acids-weak base and strong acid-strong base
phenolphthalein is……..in acid
colourless
phenolphthalein is………..in alkali
pink
phenolphthalein should be used in titrations with
weak acid-strong base and strong acid-strong base
