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2 cards from this section. Quick, good the night before a test.
What is the purpose of using an indicator in a titration?
Think about how you know when to stop pouring in a titrant.
What is the equivalence point in a titration?
It’s when the colors change.
What is titration primarily used for?
Think about the purpose behind this analytical technique.
True or False: In a back titration, the excess reagent is titrated after it has reacted with the analyte.
Consider the order of operations in this technique.
You have a 0.150 mol dm⁻³ solution of sulfuric acid. If you perform a titration with 20.0 cm³ of this acid using 0.100 mol dm⁻³ sodium hydroxide, how much sodium hydroxide is required to reach the equivalence point?
Remember to account for the stoichiometry of the reaction.
In a back titration scenario, a sample of limestone is added to an excess of hydrochloric acid, and you titrate the unreacted acid with sodium hydroxide. If 0.200 mol dm⁻³ hydrochloric acid is in excess and 20.0 cm³ is titrated with sodium hydroxide and requires 30 cm³ of sodium hydroxide at 0.150 mol dm⁻³. Calculate the moles of limestone reacted.
Make sure to analyze your data carefully and adjust calculations as necessary.
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