Reactions Of Acids- Titrations Flashcards
What does a titration measure?
A titration can be used to measure the volumes of acid and alkali that react wih
each other.
What is a pipette used for?
A pipette is used to measure a fixed volume of a solution.
what is a burette used for?
A burette is used to obtain an accurate measurements of the volume of the
solution added.
An acid / base indicator with a _____ end point eg p______________, is used.
An acid / base indicator with a sharp end point eg phenolphthalein, is used.
Results are repeated until you have 2 __________ results and a ____ is calculated.
Results are repeated until you have 2 concordant results and a mean is calculated.
A ______ acid is completely _______ in aqueous solutions.
A strong acid is completely ionised in aqueous solutions.
list three examples of strong acids
Hydrochloric, nitric and sulphuric acids are strong acids.
____ acids only partially ionise in _______ solutions.
Weak acids only partially ionise in aqueous solutions.
list three examples of weak acids
Ethanoic, citric and carbonic
acids are weak acids.
The ________ the acid the lower the __.
The stronger the acid the lower the pH.
As the pH decreases by ___ unit, the hydrogen ion _____________ increases by a
factor of __.
As the pH decreases by one unit, the hydrogen ion concentration increases by a
factor of 10.
pH 1 = ______ ion concentration of 0.1 mol/dm 3 , pH _ = 0.01mol/dm 3 and so on
pH 1 = hydrogen ion concentration of 0.1 mol/dm 3 , pH 2 = 0.01mol/dm 3 and so on