Titration Flashcards
what is titration?
measures the volumes of acid and alkali solution that are needed in neutralisation reaction
how can we find the concentration of an alkali?
titration if we knew:
- concentration of acid to be added
- volume of alkali
what is a standard solution?
a solution for which the concentration is known
what are indicators used for in titration?
show the end point by suddenly changing colour
what must be considered when choosing an indicator?
the strength of the acid or alkali
phenolphthalein in acid…
colourless
phenolphthalein in alkali…
pink
methyl orange in acid…
red
methyl orange in alkali…
yellow
litmus paper in acid…
red
litmus paper in alkali…
blue
what type of results should you use?
concordant
what is a concordant result?
results within 0.1cm3
what makes results more reliable?
repeating (until concordant results)
