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WAChemistryQuick questions
Unit 4: Organic Chemistry and Chemical Synthesis
Quick questions on Chemical synthesis and analysis: WACE Year 12 Chemistry
4short 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 percentage yield?Show answer
The percentage yield compares the amount of product actually obtained with the maximum predicted by stoichiometry (the theoretical yield):
What is atom economy?Show answer
Atom economy measures how much of the total mass of all reactants ends up in the desired product, rather than in by-products:
What is green chemistry?Show answer
Green chemistry designs syntheses to reduce environmental impact: maximising atom economy and yield, using renewable feedstocks, avoiding toxic or hazardous reagents and solvents, using catalysts rather than stoichiometric reagents, minimising energy use, and designing products and by-products that are safe and degradable. The goal is to prevent waste rather than to clean it up afterwards.
What is instrumental analysis?Show answer
Chemists identify and measure substances using instrumental techniques. The WACE course expects you to interpret data from:
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