(a) Interpretation: Whether the hydrogen present as H + , H − or a covalently bonded H in H 2 Se should be determined. Concept introduction: The location of each element in the periodic table determines the formula of the hydride it forms. Alkali metals form ionic hydrides and have the formula AH . Transition elements form interstitial hydrides and have no definite stoichiometric formula, AH x . Covalent hydrides are formed by nonmetals and the formula depends on their group in periodic table.
(a) Interpretation: Whether the hydrogen present as H + , H − or a covalently bonded H in H 2 Se should be determined. Concept introduction: The location of each element in the periodic table determines the formula of the hydride it forms. Alkali metals form ionic hydrides and have the formula AH . Transition elements form interstitial hydrides and have no definite stoichiometric formula, AH x . Covalent hydrides are formed by nonmetals and the formula depends on their group in periodic table.
Solution Summary: The author explains that the location of each element in the periodic table determines the formula of the hydride it forms.
Definition Definition Elements containing partially filled d-subshell in their ground state configuration. Elements in the d-block of the periodic table receive the last or valence electron in the d-orbital. The groups from IIIB to VIIIB and IB to IIB comprise the d-block elements.
Chapter 22, Problem 22.59SP
Interpretation Introduction
(a)
Interpretation:
Whether the hydrogen present as H+, H− or a covalently bonded H in H2Se should be determined.
Concept introduction:
The location of each element in the periodic table determines the formula of the hydride it forms. Alkali metals form ionic hydrides and have the formula AH. Transition elements form interstitial hydrides and have no definite stoichiometric formula, AHx. Covalent hydrides are formed by nonmetals and the formula depends on their group in periodic table.
Interpretation Introduction
(b)
Interpretation:
Whether the hydrogen present as H+, H− or a covalently bonded H in RbH should be determined.
Concept introduction:
The location of each element in the periodic table determines the formula of the hydride it forms. Alkali metals form ionic hydrides and have the formula AH. Transition elements form interstitial hydrides and have no definite stoichiometric formula, AHx. Covalent hydrides are formed by nonmetals and the formula depends on their group in periodic table.
Interpretation Introduction
(c)
Interpretation:
Whether the hydrogen present as H+, H− or a covalently bonded H in CaH2 should be determined.
Concept introduction:
The location of each element in the periodic table determines the formula of the hydride it forms. Alkali metals form ionic hydrides and have the formula AH. Transition elements form interstitial hydrides and have no definite stoichiometric formula, AHx. Covalent hydrides are formed by nonmetals and the formula depends on their group in periodic table.
Interpretation Introduction
(d)
Interpretation:
Whether the hydrogen present as H+, H− or a covalently bonded H in GeH4 should be determined.
Concept introduction:
The location of each element in the periodic table determines the formula of the hydride it forms. Alkali metals form ionic hydrides and have the formula AH. Transition elements form interstitial hydrides and have no definite stoichiometric formula, AHx. Covalent hydrides are formed by nonmetals and the formula depends on their group in periodic table.
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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