Molecular Shapes


by decibel
Tags: molecular, shapes
decibel
decibel is offline
#1
Mar2-04, 07:35 PM
P: 117
what does a CO(subscript3)^-2 look like? (as in the drawing and the shape of the molecule?
Phys.Org News Partner Chemistry news on Phys.org
Patented research remotely detects nitrogen-rich explosives
Pocket-sized anthrax detector aids global agriculture
Structure of sodium channels different than previously believed
Mike H
Mike H is offline
#2
Mar2-04, 08:33 PM
P: 464
Clues so you can work this out for yourself:

1.) How many valence electrons are there? (Don't forget to factor in the charge of the molecule!)

2.) It is safe to conclude that carbon is the central atom, given that is typically how the chemical shorthand works.

3.) So if you have a carbon atom at the center and three oxygen atoms, what is the most intuitive way to arrange these three atoms?

4.) Fill the valences with your calculated number of valence electrons for all the atoms, remembering that the final molecule should have a formal charge of -2 at the end.

Good luck!
thunderfvck
thunderfvck is offline
#3
Mar2-04, 08:56 PM
P: 210
THe central carbon is double bonded to one oxygen and single bonded to two oxygens. The two single bonded oxygens both carry a -1 charge. Trigonal planar, carbon's sp2 hybridized.

decibel
decibel is offline
#4
Mar2-04, 09:36 PM
P: 117

Molecular Shapes


hmm...ok i think i got it, thanks
hitssquad
hitssquad is offline
#5
Mar2-04, 09:41 PM
hitssquad's Avatar
P: 1,382
Originally posted by decibel
what does a CO(subscript3)^-2 look like? (as in the drawing and the shape of the molecule?
You mean [tex]CO_2[/tex]?





-Chris
thunderfvck
thunderfvck is offline
#6
Mar2-04, 10:16 PM
P: 210
No, he means the carbonate ion. CO3 with a charge of -2.
decibel
decibel is offline
#7
Mar2-04, 10:23 PM
P: 117
ya


Register to reply

Related Discussions
Lewis Structure + Molecular shapes Chemistry 19
chemistry molecular shapes prob. Biology, Chemistry & Other Homework 2
What are the shapes of molecular orbitals? Atomic, Solid State, Comp. Physics 4
Molecular Shapes Chemistry 1
Questions about molecular forces and shapes Chemistry 1