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Chemistry
5-Formulae, Equations, and Amounts of Substance
5.7 - Titration Principles
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Created by
Pietra Magagnin
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Cards (6)
aims of titrations
determine
equation
for the
reaction
determine
concentration
of an
unknown
substance
end point
point at which
colour
change
occurs showing that
enough
of the
solution
in the
burette
has been
added
to
react
with the
chemical
in the
flask
equivalence point
when the
amount
of
reactant
added from a
burette
is just enough to react
exactly
with
all
the measured amount of
chemical
in the
flask
equation used for titration calculations
concentration
(
mol dm-³
) =
number
of
moles
÷
volume
(dm³
)
back titrations
used to find the
number
of
moles
of a
substance
by reacting it with an
excess
volume
of
reactant
of known
concentration
double indicator titrations
titration with
2
different
indicators
happens in
2
stages, each represents exactly
half
of the
overall
reaction
so each requires the
same
volume
of
acid
from the
burette
