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Category Archives: Labs
Day 0, 2019 – the things you need to do BEFORE your first class
Welcome back to Reed. We have an exciting organic chemistry curriculum planned for the 2019-20 editions of Chem 201 and 202, and we will get off to a flying start so here goes… Reed’s first week of classes is short … finish reading Day 0, 2019 – the things you need to do BEFORE your first class
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Models for Learning about Electrostatic Potential Maps
The models you need can be downloaded here: ions321inter.spartan neutrals321inter.spartan
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Ethanol IR models
Click on the link to download a Spartan EDF2/6-31G** model of ethanol monomer and ethanol dimer. The models have been combined in a single file (a ‘list’ model) and they already contain calculated IR spectra, so do not replace them … finish reading Ethanol IR models
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Lab Grades
Nearly all of the lab reports have been graded so you can expect to see graded lab reports turning up in your inbox over the next week or so. The lab reports contain three grades: notebook, lab work, report. 99+% … finish reading Lab Grades
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Preparing for EsCENTial Oil lab – weeks 2 & 3
This lab experiment lasts 3 weeks. Students finished varying amounts of lab work during the first week so planning the remaining work is a little complicated. I’ve written up a two-page set of instructions to guide you. Please read this … finish reading Preparing for EsCENTial Oil lab – weeks 2 & 3
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How to interpret your IR spectrum
There seems to be a little confusion about how to interpret your experimental IR spectra and how to use Spartan’s calculated spectrum. I hope the following will help clarify things a little (I recall that I had to interpret about … finish reading How to interpret your IR spectrum
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Combination Coupling in Salicylic Acid 1H NMR
The reading of Exp’t 4 (salicylic acid) lab reports informed me that many 201 students struggled with the complexities of the proton NMR spectrum. The NMR of salicylic acid is complicated, no doubt about it, but it can be understood … finish reading Combination Coupling in Salicylic Acid 1H NMR
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Delete Peak = No-No in NMR
An NMR spectrum provides important data on what’s in the NMR sample. Students are taught to look for certain contaminants – TMS, CHCl3, H2O – as a matter of routine. As many know, however, removing the last traces of chromatography … finish reading Delete Peak = No-No in NMR
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NMR & IR slides from lab lecture
A few of you were unable to attend last night’s lab lecture. Here are slides from the lab lecture (bonus prize: GC data for a ‘standard’ mixture of isopentyl alcohol and isopentyl acetate): IR slides NMR slides GC standards
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Oct 10 lab lecture slides – distillation
You can download a copy of tonight’s lecture here.
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