§-Chemistry Q&A
TAS · TASC← Chemistry
Chemistry Q&A by dot point
A short Q&A bank for every TAS Chemistry syllabus dot point. Each question and answer is drawn directly from our worked dot-point page, so you can scan key concepts before opening the long-form answer.
Unit 3: Equilibrium, Acids and Redox
Interpret titration curves for the four acid-base combinations and select a suitable indicator.
Apply the Bronsted-Lowry model, distinguish strong and weak acids, and calculate pH, pOH and Kw relationships.
Construct and combine oxidation and reduction half-equations to balance redox reactions.
Explain how a buffer maintains pH using equilibrium and calculate buffer pH.
Explain how a catalyst increases rate by providing an alternative pathway with lower activation energy.
Explain dynamic equilibrium, write equilibrium constant expressions, and predict shifts using Le Chatelier's principle.
Use collision theory to explain how concentration, temperature, surface area and pressure change reaction rate.
Explain corrosion as an electrochemical process and evaluate methods of prevention.
Describe galvanic and electrolytic cells and calculate cell potentials from standard electrode potentials
Apply Faraday's laws to calculate masses and volumes produced in electrolysis.
Define enthalpy change, classify reactions as exothermic or endothermic, and use calorimetry data with energy profile diagrams.
Write equilibrium expressions and calculate Kc, interpreting its size and units.
Apply the ideal gas equation and molar gas volume to calculate gas quantities in reactions.
Apply Hess's law and bond enthalpy data to calculate enthalpy changes for reactions.
Assign oxidation numbers, identify oxidants and reductants, and balance redox half-equations and overall equations.
Write solubility product expressions, calculate Ksp and solubility, and predict precipitation.
Use the mole concept and balanced equations to perform stoichiometric calculations, including limiting reagent and percentage yield.
Carry out volumetric analysis calculations using moles, concentration and stoichiometry.
Use Ka and pKa to describe weak acid strength and calculate the pH of a weak acid solution.
Unit 4: Structure, Synthesis and Design
Select and interpret spectroscopic and chromatographic techniques to determine structure and concentration
Relate bonding type and intermolecular forces to melting point, boiling point, solubility and conductivity.
Describe the acidity of carboxylic acids and the esterification and hydrolysis of esters.
Design multistep synthesis pathways and evaluate them using yield and green chemistry principles
Apply IUPAC nomenclature and identify structural and stereo isomers of organic compounds.
Classify organic functional groups and describe their characteristic reactions
Distinguish addition and condensation polymerisation and relate polymer structure to properties
Classify alcohols and describe their oxidation, dehydration, substitution and combustion reactions.