Question

What is not clear about a question that states ‘discuss the VSEPR of acetic acid, CH3COOH’

Answer 1

Molecular geometries:
Bent on the Oxygen attached to the Carbon and the Hydrogen (2 Shared, 2 Unshared)

Tetrahedral on the Carbon attached to the three Hydrogens and the other Carbon (4 shared, 0 Unshared)

Trigonal planar on the Carbon attached to the double bond Oxygen, the single bonded Oxygen, and the other carbon (3 Shared, 0 Unshared)

Electron geometries:
Tetrahedral on the Carbon attached to the three Hydrogens and the other Carbon.
Trigonal planar on the other Carbon.
Tetrahedral on the Oxygen attached to the Hydrogen and the second Carbon.

Orbital hybridizations:
Around all the Hydrogens and the double bond Oxygen: S
Around the single bond Oxygen: SP
Around Carbon without the Hydrogens: SP^2(Looks like P squared)
Around Carbon with Hydrogens: SP^3(Looks like P cubed)

Since the hybridization around the second carbon is SP^2, it's trig planar and that means 120 degrees apart.