Molecular Geometry of XeO3

The video tutorial explains the molecular geometry of xenon trioxide (XeO3). It begins with the Lewis structure, identifying the steric number and lone pairs. The geometry is determined to be trigonal pyramidal with a bond angle of approximately 109.5 degrees, though it is slightly less due to the lone pair's influence. The AXE notation is also used to confirm the geometry. The tutorial concludes with a summary of the findings.

What is the first step in determining the molecular geometry of XeO3?

• Drawing a valid Lewis structure

• Calculating the bond angles

• Identifying the hybridization

• Measuring the bond lengths

What is the steric number for XeO3?

• 3

• 4

• 5

• 6

What is the molecular geometry of XeO3?

• Tetrahedral

• Trigonal pyramidal

• Trigonal planar

• Linear

What is the approximate bond angle in XeO3?

• 109.5 degrees

• 120 degrees

• 90 degrees

• 180 degrees

How does the lone pair affect the geometry of XeO3?

• It changes the hybridization

• It pushes the oxygen atoms down

• It has no effect

• It increases the bond angle

What is the actual bond angle in XeO3 due to the lone pair?

• 103 degrees

• 120 degrees

• 109.5 degrees

• 90 degrees

In AXE notation, what does the 'E' represent for XeO3?

• The type of bonds

• The number of atoms bonded

• The central atom

• The number of lone pairs