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TASChemistryQuick questions
Unit 3: Equilibrium, Acids and Redox
Quick questions on Electrolysis and Faraday's laws - TCE Chemistry (Tasmania)
2short 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 linking electrons to product?Show answer
The electrode half-equation tells you how many electrons are needed per mole of product. For example, depositing copper requires , so 2 moles of electrons give 1 mole of copper. The general routine is:
What are gas volumes?Show answer
If the product is a gas, convert moles to volume using the molar gas volume at the stated conditions, or the ideal gas equation. The same electron bookkeeping applies; just watch the electrons per mole of gas, which is often more than for a metal.
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