ChemistryHardHigh School (11–12)Organic Compounds with Functional Groups › Alcohols, Phenols and Ethers
Back titration and Zeisel analysis
You will write three functions for two quantitative methods: the back titration of ethanol with dichromate and iron(II), and Zeisel's method for methoxy groups.
The idea. One dichromate takes six iron(II). Three ethanol are oxidised to the acid by two dichromate. In Zeisel's method, each OCH group gives one silver iodide.
Your tasks.
- Complete
dichromate_left(iron_mmol)so that it returns the millimoles of dichromate left over, from the millimoles of iron(II) used. - Complete
ethanol_mg(added_mmol, iron_mmol)so that it returns the mass of ethanol in mg. - Complete
methoxy_groups(sample_g, agi_g, molar_mass)so that it returns the number of OCH groups in one molecule.
Contributed by StemPy Labpython
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