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For molecular rotation the symbol J rather than l is utilized as the quantum number for angular momentum. A 1H35Cl molecule whose bond length and force constant are 127 pm and 516 N/m, respectively has the rotational quantum number n=0.
(a) Compute the rotational and vibrational energy of the molecule. Compare each of these energies with kT at 300K.
(b) Compute the period for vibration and rotation. Explain how many times does the molecule rotate during one vibrational period?
Calculate the initial rate of the NO reduction at 1100 K if 400.00 mg of NO and 600.00 mg of H2 are confined to a 5.00 L reaction vessel.
The rate constant (k) for a reaction was measured as a function of temperature. A plot of ln k versus 1/T (in K) is linear and has a slope of -6542 K. Calculate the activation energy for the reaction.
calculate the standard emf of a cell that uses the mgmg2 and cucu2 half-cell reactions at 25 degrees celsius. write the
Calculate the atomic mass of neon (Ne) which is composed of three naturally occurring isotopes with the following natural abundances and masses
36.45mL of 0.11 M hydrochloric acid were added to 36.45mL of 0.098 M aqueous barium hydroxide. Compute the theoretical yield of the salt produced
Explain how many grams of benzene, C6H6, can be melted with 16.2 kJ of heat energy. The molar heat of fusion of benzene is 9.95 kJ/mol.
Calculate the rate constant and half- life for the radium decay. Starting with 1.0 g of the radium sample, what is the activity after 500 years? The molar mass of ra-226 is 226.03 g/mol.
what are the freezing point and boiling point of 0.20 m glycerol in ethanol?what is the freezing point of 2.04 g kbr
the energy levels the electron can occupy in the be3ion can be calculated using the energy level equation. calculatethe
Compute the molar concentration of HNO3. (FM = 63.0) in a solution that has a precise gravity of 1.42 and is 68.5% HNO3 (w/w).
Safrole is used as a topical antiseptic. Calculate the vapor pressure of a solution prepared by dissolving 0.75 mol of safrole in 950 g of ethanol ( molar mass = 46.07 g/mol). P°ethanol = 50.0 torr at 25°C
determine the number of carbon atoms in the compound. Natural abundances: 12C is 98.93% and 13C is 1.07%
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