The electron affinity of fluorine and ionization energy of sodium is to be compared. The sign of Δ E in the process of electron “pull” from the sodium atom to the fluorine atom is to be evaluated. The reason of stability of NaF compound is to be explained. The sign of Δ E in the overall formation of NaF is to be evaluated. Concept introduction: The change in energy of a reaction is defined as the sum of change in the internal energy of a system and the product of its absolute temperature and entropy. Electron affinity is defined as the energy released from a neutral atom in gaseous phase when it gains an electron to form negatively charged ion. Ionization energy is defined as the energy required to remove an electron from the neutral atom. To determine: The analogy between the electron affinity of fluorine and ionization energy of sodium; if the Δ E is positive or negative in the process of electron “pull” from the sodium atom to the fluorine atom; the reason that the NaF compound is stable; if the Δ E is positive or negative in the overall formation of NaF .
The electron affinity of fluorine and ionization energy of sodium is to be compared. The sign of Δ E in the process of electron “pull” from the sodium atom to the fluorine atom is to be evaluated. The reason of stability of NaF compound is to be explained. The sign of Δ E in the overall formation of NaF is to be evaluated. Concept introduction: The change in energy of a reaction is defined as the sum of change in the internal energy of a system and the product of its absolute temperature and entropy. Electron affinity is defined as the energy released from a neutral atom in gaseous phase when it gains an electron to form negatively charged ion. Ionization energy is defined as the energy required to remove an electron from the neutral atom. To determine: The analogy between the electron affinity of fluorine and ionization energy of sodium; if the Δ E is positive or negative in the process of electron “pull” from the sodium atom to the fluorine atom; the reason that the NaF compound is stable; if the Δ E is positive or negative in the overall formation of NaF .
Solution Summary: The author compares the electron affinity of fluorine and ionization energy of sodium. The sign of Delta E in the process of electron "pull" from the sodium atom to the flu
Definition Definition Change in energy of a neutral gaseous atom when an electron is added to the atom to form a negative ion.
Chapter 3, Problem 64E
Interpretation Introduction
Interpretation: The electron affinity of fluorine and ionization energy of sodium is to be compared. The sign of
ΔE in the process of electron “pull” from the sodium atom to the fluorine atom is to be evaluated. The reason of stability of
NaF compound is to be explained. The sign of
ΔE in the overall formation of
NaF is to be evaluated.
Concept introduction: The change in energy of a reaction is defined as the sum of change in the internal energy of a system and the product of its absolute temperature and entropy.
Electron affinity is defined as the energy released from a neutral atom in gaseous phase when it gains an electron to form negatively charged ion.
Ionization energy is defined as the energy required to remove an electron from the neutral atom.
To determine: The analogy between the electron affinity of fluorine and ionization energy of sodium; if the
ΔE is positive or negative in the process of electron “pull” from the sodium atom to the fluorine atom; the reason that the
NaF compound is stable; if the
ΔE is positive or negative in the overall formation of
NaF.
In the solid state, oxalic acid occurs as
a dihydrate with the formula H2C2O4
C+2H2O. Use this formula to
calculate the formula weight of oxalic
acid. Use the calculated formula
weight and the number of moles
(0.00504mol)
of oxalic acid in each titrated
unknown sample recorded in Table
6.4 to calculate the number of grams
of pure oxalic acid dihydrate
contained in each titrated unknown
sample.
1.
Consider a pair of elements with 2p and 4p valence orbitals (e.g., N and Se). Draw their
(2p and 4p AO's) radial probability plots, and sketch their angular profiles. Then, consider these
orbitals from the two atoms forming a homonuclear л-bond. Which element would have a
stronger bond, and why?
(4 points)
Write the reaction and show the mechanism of the reaction. Include the mechanism
for formation of the NO2+
2. Explain, using resonance structures, why the meta isomer is formed. Draw possible
resonance structures for ortho, meta and para.
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