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VICChemistryQuick questions
Unit 4: How are carbon-based compounds designed for purpose?
Quick questions on Sustainable chemistry: 12 principles and atom economy (VCE Chemistry Unit 4)
7short 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 atom economy?Show answer
Atom economy is a calculated metric that quantifies how much of the starting material's atoms end up in the desired product. It is independent of yield.
What are renewable feedstocks?Show answer
A renewable feedstock is one that can be replenished within a human timescale. Common examples in industrial green chemistry:
What is worked calculation?Show answer
Synthesis of ethanol by hydration of ethene (industrial route):
What is worked calculation, substitution reaction?Show answer
Synthesis of chloromethane from methane:
What is q1?Show answer
Calculate the atom economy of the synthesis of ethanol from glucose by fermentation:
What is q2?Show answer
Identify three of the 12 principles of green chemistry and apply each to the manufacture of polyethylene from ethylene. [6 marks]
What is q3?Show answer
A process has 95 percent atom economy and 30 percent yield. A revised process has 60 percent atom economy and 95 percent yield. Compare them using the green-chemistry framework.
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