Interpretation:
The magnitude of the electric dipole moment of methanal has to be calculated.
Concept introduction:
The quantity that is used to measure the uneven distribution of electrons around the atoms of a compound that possess the covalent bonds is known as dipole moment. The electric dipole moment is basically a measurement of the separation of negative and positive electrical charges. It is denoted by

Answer to Problem 14A.1ST
The magnitude of the electric dipole moment of methanal is
Explanation of Solution
The given illustration of methanal or formaldehyde is shown below.
Figure 1
The positions of the given atoms are represented by
The value of charge is
The equation that s used to calculate the electric dipole is given below.
The value of
The value of
Substitute
The structure of methanol is planar, so
Substitute
Therefore, the magnitude of the electric dipole moment of methanal is
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Chapter 14 Solutions
ATKINS' PHYSICAL CHEMISTRY
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