Assume that all of the following nuclei undergo fission into a pair of equal or nearly equal mass fragments. Using Figure 34.16 as your guide, rank from greatest to least the ?reduction? in mass for these nuclei after fission. a. Uranium b. Silver c. Titanium d. Iron
Chapter 15 Cont.: IR Spectroscopy * Three things to pay attention to for structure identification 1) Wave number 2) IR Active/ IR Inactive 3) Broad Peak or short peak: helps determine intermolecular types of associations IR Signal Shapes - O – H: signal will be narrower if alcohol is prepared in a solvent incapable of H-bonding - In a sample with an intermediate concentration, both narrow and broad signals may be observed - If there is no carbonyl group signal, it is definitely an alcohol - Secondary amine: broad w/ 1 sharp spike - Primary amine: broad with 2 sharp spikes - No signal for tertiary amines Using IR to distinguish between molecules - IR alone cannot determine structure - Some signals may be ambiguous - Functio
