Bruice - Chimica Organica

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456 Chapter 13
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5. How can you distinguish between the IR spectra of the following compounds?
a. OH OH
and
b.
H
O O
and
c.
OH
O
OCH 3
O
and
d.
O
OCH 3
and
e. and
6. Which compound has the greater lmax? (300 nm is a greater l max than 250 nm.)
a. and
b.
N
NH 2 and
H
c.
+
NH 2 NH3
and
7. A solution of a compound with a molar absorptivity of 1200 M- 1 cm- 1 at 297 nm gives an absorbance of
0.76 at that wavelength in a 1.0 cm quartz cell. What is the concentration of the solution?
8 Draw possible structures for an alcohol that has a molecular ion with an m>z value of 60.
9. A bond between a carbon and an atom of similar electronegativity breaks ___________, whereas a bond
between a carbon and a more electronegative atom breaks _____________.