(a) Interpretation: The formula and the charge of silicate anion should be determined. Concept introduction: A tetrahedron denotes a SiO 4 structural unit. Number of silicon atoms can be determined by counting the number of tetrahedrons while oxygen atoms by counting the number of corners. To determine the charge of the anion, the number of unshared corners should be counted.
(a) Interpretation: The formula and the charge of silicate anion should be determined. Concept introduction: A tetrahedron denotes a SiO 4 structural unit. Number of silicon atoms can be determined by counting the number of tetrahedrons while oxygen atoms by counting the number of corners. To determine the charge of the anion, the number of unshared corners should be counted.
Solution Summary: The author explains the formula and the charge of silicate anion, which is composed of silicon and oxygen atoms.
The formula and the charge of silicate anion should be determined.
Concept introduction:
A tetrahedron denotes a SiO4 structural unit. Number of silicon atoms can be determined by counting the number of tetrahedrons while oxygen atoms by counting the number of corners. To determine the charge of the anion, the number of unshared corners should be counted.
Interpretation Introduction
(b)
Interpretation:
The formula and the charge of silicate anion should be determined.
Concept introduction:
A tetrahedron denotes a SiO4 structural unit. Number of silicon atoms can be determined by counting the number of tetrahedrons while oxygen atoms by counting the number of corners. To determine the charge of the anion, the number of unshared corners should be counted.
Transmitance
3. Which one of the following compounds corresponds to
this IR spectrum?
Point out the absorption band(s) that helped you
decide.
OH
H3C
OH
H₂C
CH3
H3C
CH3
H3C
INFRARED SPECTRUM
0.8-
0.6
0.4-
0.2
3000
2000
1000
Wavenumber (cm-1)
4. Consider this compound:
H3C
On the structure above, label the different types of H's
as A, B, C, etc.
In table form, list the labeled signals, and for each
one state the number of hydrogens, their shifts, and the
splitting you would observe for these hydrogens in the ¹H
NMR spectrum.
Label
# of hydrogens
splitting
Shift (2)
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