How can we help?

You can also find more resources in our Help Center.

22 terms

LC Chem 4.3 Acid-Base titrations

chemistry
STUDY
PLAY
Standard solution
A solution of precisely known concentration
Primary standard
A substance which can be obtained in a stable, pure and soluble solid form so that it can be weighed out and dissolved in water to give a solution of accurately known concentration.
Titration
A laboratory procedure where a measured volume of one solution is added to a known volume of another solution until the reaction is complete.
Equivalence point
The stage in the titration when the two solutions just react completely with each other
End point
The stage in the titration when the equivalence point is shown by an indicator
Graduated cylinders
Apparatus used for measuring approximate volumes of liquids
Volumetric flask
Apparatus which holds an exact volume of liquid when the meniscus rests on the calibration mark.
Pipette
Apparatus designed to deliver the exact volume of liquid that is indicated on the bulb
Burette
Apparatus which consists of a long narrow glass tube that is closed at the bottom by means of a tap
Conical flask
Apparatus designed to prevent liquid from splashing out when it is being swirled
Methyl orange
Indicator used for sodium carbonate with hydrochloric acid
Yellow
Colour of Methyl orange indicator in basic solution
Red
Colour of Methyl orange indicator in acidic solution
Yellow to Red
Colour change for Methyl orange indicator (base to acid)
Sodium hydroxide
Base used when determining the percentage of ethanoic acid in vinegar
Phenolphthalein
Indicator used for sodium hydroxide with ethanoic acid
Phenolphthalein
Indicator used for determining the percentage of ethanoic acid in vinegar
Pink
Colour of Phenolphthalein indicator in a base
Colourless
Colour of Phenolphthalein indicator in an acid
Pink to Colourless
Colour change for Phenolphthalein indicator (base to acid)
Hydrochloric acid
Acid used when determining the percentage of water of crystallisation in hydrated sodium carbonate (washing soda)
Methyl orange
Indicator used for determining the percentage of water of crystallisation in hydrated sodium carbonate (washing soda)