The values of rotational constant, B for SF 6 and UF 6 are to be calculated. The differences between their B values, taking into account their atomic masses is to be commented. Concept introduction: In a molecule, the rotational energy level corresponds to the different probable ways in which the portion of a molecule rotates around the chemical bond that binds it to the rest of the molecule. Every rotational energy level possesses degeneracy. The two-body system is represented as a one-body system by a reduced mass. It is expressed by a quantity μ . The inertial mass of the moving body with respect to the body which is at rest is simplified to a reduced mass when there are only mutual interactions between the two bodies. The spherical top refers to a symmetric rotor that has the same value for all moments of inertia. For spherical tops, I a = I b = I c .

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A 0.10 M solution of acetic acid (CH3COOH, Ka = 1.8 x 10^-5) is titrated with a 0.0250 M solution of magnesium hydroxide (Mg(OH)2). If 10.0 mL of the acid solution is titrated with 20.0 mL of the base solution, what is the pH of the resulting solution?

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Chapter 14, Problem 14.16E

Interpretation Introduction

Interpretation:

The values of rotational constant, B for SF6 and UF6 are to be calculated. The differences between their B values, taking into account their atomic masses is to be commented.

Concept introduction:

In a molecule, the rotational energy level corresponds to the different probable ways in which the portion of a molecule rotates around the chemical bond that binds it to the rest of the molecule. Every rotational energy level possesses degeneracy.

The two-body system is represented as a one-body system by a reduced mass. It is expressed by a quantity μ. The inertial mass of the moving body with respect to the body which is at rest is simplified to a reduced mass when there are only mutual interactions between the two bodies.

The spherical top refers to a symmetric rotor that has the same value for all moments of inertia. For spherical tops, Ia=Ib=Ic.

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A 0.10 M solution of acetic acid (CH3COOH, Ka = 1.8 x 10^-5) is titrated with a 0.0250 M solution of magnesium hydroxide (Mg(OH)2). If 10.0 mL of the acid solution is titrated with 20.0 mL of the base solution, what is the pH of the resulting solution?

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