Chem 155 Quiz 3 Review Topics
Chem 155 Quiz 3 Review Topics
Chem 155 Quiz 3 Review Topics
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<strong>Chem</strong> <strong>155</strong> <strong>Quiz</strong> 3 <strong>Review</strong> <strong>Topics</strong>:10. What is the function of the reagent blank in the metals experiment?To evaluate analyte levels in the Blank.11. What is the function of the spike recovery analysis in the metals experiment?To validate the sample preparation step.12. Circle the correct answer. In comparison to double-beam scanningspectrophotometers, diode array spectrophotometers are:QualitySpectrometer TypeDiode Array Double Beammore accurate absorbancemore accurate wavelengthmuch fastermore complexmore expensive13. Solvatochromism: correlate the following:Spectral Shift on transfer from hexane to alcoholTransitiontypePredominant effect seen in spectrum is:Shiftnonbonding (n) * orbitaldirection orbitalred blue stabilize destabilize stabilize destabilizen**14. Aromatic substitution:Spectral Shift on 254 nm * transition of benzene upon substitution with:Substituent ShiftdirectionEffect on orbital Effect on * orbitalOHO -NH 2NH 3+red blue stabilize destabilize stabilize destabilize
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