The structure of the compound has to be identified from the given data. Concept introduction: Spectroscopy: It is study of the interaction of matter and electromagnetic radiation, a continuum of different types of electromagnetic radiation each associated with a particular energy range makes up the electromagnetic spectrum. IR frequency (cm -1 ): It is the number of wave crests that pass by a given point in one second frequency has units of hertz (Hz). Stretch vibrations: It is a vibration occurring along the line of the bond a stretching vibration changes the bond length. Bending vibrations: It is a vibration that does not occur along the line of the bond, bending vibration changes the bond angle. Mass spectroscopy: Interpreting a mass spectrum: Each m/z values is the m/z value of one the fragments to the nearest whole number. The peak with the highest m/z value in the molecular ions (M + ), the fragment that results when the molecules lose electrons as result of being bombarding by the electron beam. The m/z value of the molecular ion gives the molecular mass of the compound. Peaks with smaller m/z values, fragment ion peak represent positively charged fragments of the molecular ion. Base peak of mass spectrum: The base peak is the one of highest (or) tallest peak, it has great abundance. It has the greatest relative abundance because it is generally the most stable positively charged fragment. Given information: The absorption value is at 1584, 1478, and 1446 cm -1 and it has M + = 114, 112 and 77.

Question

1) a) Give the dominant Intermolecular Force (IMF) in a sample of each of the following compounds. Please show your work. (8) SF2, CH,OH, C₂H₂ b) Based on your answers given above, list the compounds in order of their Boiling Point from low to high. (8)

Answer 1

Question

Chapter 12.SE, Problem 50AP

Interpretation Introduction

Interpretation:

The structure of the compound has to be identified from the given data.

Concept introduction:

Spectroscopy:

It is study of the interaction of matter and electromagnetic radiation, a continuum of different types of electromagnetic radiation each associated with a particular energy range makes up the electromagnetic spectrum.

IR frequency (cm^-1):

It is the number of wave crests that pass by a given point in one second frequency has units of hertz (Hz).

Stretch vibrations:

It is a vibration occurring along the line of the bond a stretching vibration changes the bond length.

Bending vibrations:

It is a vibration that does not occur along the line of the bond, bending vibration changes the bond angle.

Mass spectroscopy:

Interpreting a mass spectrum:

Each m/z values is the m/z value of one the fragments to the nearest whole number.

The peak with the highest m/z value in the molecular ions (M⁺), the fragment that results when the molecules lose electrons as result of being bombarding by the electron beam.

The m/z value of the molecular ion gives the molecular mass of the compound.

Peaks with smaller m/z values, fragment ion peak represent positively charged fragments of the molecular ion.

Base peak of mass spectrum:

The base peak is the one of highest (or) tallest peak, it has great abundance. It has the greatest relative abundance because it is generally the most stable positively charged fragment.

Given information:

The absorption value is at 1584, 1478, and 1446 cm^-1 and it has M⁺ = 114, 112 and 77.

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