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WAChemistryQuick questions
Unit 3: Equilibrium, Acids and Bases, and Redox
Quick questions on Volumetric analysis and titration curves: WACE Year 12 Chemistry
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is the titration calculation?Show answer
The calculation uses three steps. First find the moles of the standard from . Second use the mole ratio from the balanced equation to find moles of the unknown. Third divide by the unknown's volume to get its concentration.
What are the shape of titration curves?Show answer
A titration curve plots the pH of the flask against the volume of titrant added. Its key feature is a steep, near-vertical rise through the equivalence point. The shape depends on the strengths involved:
What are standard solutions?Show answer
A primary standard is a pure, stable substance of accurately known formula (such as anhydrous sodium carbonate) that can be weighed to make a solution of precisely known concentration. Solutions of substances that are not stable enough to be primary standards (such as sodium hydroxide, which absorbs moisture and carbon dioxide) must be standardised against a primary standard before use.
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