Chapter 5, Problem 4P

The effective spring constant associated with bonding in the N2 molecule is 2 297 N/m. The nitrogen atoms each have a mass of 2.32 x 10-26 kg, and their nuclei are 0.120 nm apart. Assume the molecule is rigid. The first excited vibrational state of the molecule is above the vibrational ground state by an energy difference ΔE. Calculate the J value of the rotational state that is above the rotational ground state by the same energy difference ΔE.

qspt15 A pair of ions consist of charge +3 and -3 are separated by a distance of 0.25 nm and attracted by ionic bonding. Calculate the attraction force.    given: electronic charge, e = 1.6 x 10-19 C, Coulomb’s constant, k = 9 x 109 Nm2C-2 permittivity of free space, Ԑ0 = 8.85 x 10-12 C2 N-1 m-2

Dipole moment with alpha particle?

The atomic radii of a divalent cation and a monovalent anion are 0.074 nm and 0.128 nm, respectively. Calculate the force of attraction between these two ions at their equilibrium interionic separation (i.e., when the ions just touch one another) and the force of repulsion at the same distance.

The rotational temperature of the Oxygen molecule is 2.08 K. Estimate the molecular rotational partition function of Oxygen at 300K. a. 72.1 b.288.4 c.-144.2 d.none of the above e.144.2

Describe the following in your own words. a. van der Waals forces a.1 dipole-dipole interaction a.2 dipole-induced dipole interaction a.3 dispersion forces b. ion-dipole interaction c. H-bonding

To determine the equilibrium separation of the atoms in the HCl molecule, you measure the rotational spectrum of HCl. You find that the spectrum contains these wavelengths (among others): 60.4 mm, 69.0 mm, 80.4 mm, 96.4 mm, and 120.4 mm. (a) Use your measured wavelengths to find the moment of inertia of the HCl molecule about an axis through the center of mass and perpendicular to the line joining the two nuclei. (b) The value of l changes by +-1 in rotational transitions. What value of l for the upper level of the transition gives rise to each of these wavelengths? (c) Use your result of part (a) to calculate the equilibrium separation of the atoms in the HCl molecule. The mass of a chlorine atom is 5.81 * 10-26 kg, and the mass of a hydrogen atom is 1.67 * 10-27 kg. (d) What is the longest-wavelength line in the rotational spectrum of HCl?

is the tranfer or sharing valence electrons different than bonding.  If so, how?

The electron affinity of Cl is 3.89 eV and the ionization energy of K is 4.34 eV. Use the preceding problem to find the dissociation energy. (Neglect the energy of repulsion.)