Chapter 1: 11P (page 60)
The structures are as follows.
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For each pair of structures, determine whether they represent different compounds or a single compound.
a.
b.
c.
d.
Compute the empirical and molecular formulas for each of the following elemental analyses. In each case, propose at least one structure that fits the molecular formula.
Use resonance structures to identify the areas of high and low electron density in the following compounds:
(a) H2C=CH-NO2
(b) H2C=CH-CN
(c)
(d)
(e)
(f)
Determine whether the following pairs of structures are different compounds or simply resonance forms of the same compounds.
(a) Nitrogen has relatively stable isotopes (half-life greater than 1 second) of mass numbers 13, 14, 15, 16, and 17. (All exceptandare radioactive.) Calculate how many protons and neutrons are in each of these isotopes of nitrogen.
(b) Write the electronic configurations of the third-row elements shown in the partial periodic table in Figure 1-6.
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