Question

The oxygen disulfide molecule, may be most accurately be described as

A. linear.

B. bent.

C. pyramidal.

D. tetrahedral.

E. trigonal planar.

Answer 1

Please help! :(

Answer 2

Would E be the correct answer?

Answer 3

@Dean.Shyy

Answer 4

from my perspective, it should be called trigonal Planar, since there are three atoms ..

Answer 5

@Sultan.A so E is correct? :( I am so confused...

Answer 6

have you drawn the Lewis structure?

Answer 7

Yes.

Answer 8

@Sultan.A

Answer 9

So, think of the number of elements involved. There is 1 oxygen element + 2 sulfide elements. That means there are a total of three elements involved, which combine to form a compound.

You would have to draw out the element and its electron formations. Trigonal Planar involves exactly 4 elements. Tetrahedral involves 5 elements. With only 3 elements you are referring to, it could be either bent or linear.

Answer 10

@Dean.Shyy should not we count the lone pair on the central atom ? I think it should be called either "Slightly disordered linear" or "Trigonal Planar" because of the lone pair

Answer 11

I don't know... I am so confused :(

Answer 12

Counting lone pairs would be associated with a question that asks for the number of electron pairs, no? The question is asking what the structure is, exclusive to the electron pairs present.

Answer 13

I have no idea:(

Answer 14

I found this image you can refer to: http://is.gd/c2lBje

Answer 15

So it would be trigonal planar then?

Answer 16

What does your chemistry book say?

Answer 17

I can't find anything in the book that helps :(

Answer 18

@RH @Dean.Shyy Here is a screen shot from my lecture notes, and I based my answer on the info in this slide

Answer 19

By this I think it is trigonal planar... am I correct?

Answer 20

@RH I believe yeah, that would be the answer.

Answer 21

oxygen disulfide is similar to water in structure. So it would be bent.

Answer 22

It would not be trigonal planar because the structure is not on the plane and is also not trigonal. Tri = three. Di = two.
For a comparison, you might want to look up water.

Answer 23

Then the correct answer is Bent?

Answer 24

Yes.
Process of elimination.
It's not linear (due to the electrons on oxygen)
It's not tetrahedral (there's only 1 central carbon and 2 sulfur) meaning there isn't 4 atoms (or ligands) attached.
It's not trigonal planar either, the sulfur are not on the plane as I explained earlier, and it's not trigonal.
It's not pyramidal either (trigonal nor regular). Ammonia would be pyramidal. The lone pairs on nitrogen cause a bending of the hydrogens downward giving it a pyramidal geometry. So your only option is bent.

Answer 25

Read all my posts and your peers, and you will determine the answer. The image I provided was to show you what a TRIGONAL PLANAR looks like. Given that you do not have 4 atom elements, the answer would not be exactly and specifically a TRIGONAL PLANAR.