Draw all resonance structures for the carbonate ion, CO3^2−.

Question

Draw all resonance structures for the carbonate ion, CO[latex]_{3}^{2−}[/latex].

Accepted Answer

You are asked to draw all resonance structures for a molecule or ion.
You are given the chemical formula for the molecule or ion.
The incomplete Lewis structure (octet rule not satisfied for carbon) is

[latex]\left[\begin{matrix} \,\,\,\, :\overset{..}{\underset{|}{O}}: \:\overset{..}{\underset{..}{O}}- C- \overset{..}{\underset{..}{O}:} \end{matrix} ight] ^{2-}[/latex]

The electron deficiency for carbon is corrected by changing a lone pair on an adjacent oxygen into a bonding pair. There are three oxygen atoms with lone pairs that can correct the carbon electron deficiency, so there are three equivalent resonance structures for the carbonate ion.

[latex]\left[\begin{matrix} \,\,\,\, :\overset{..}{\underset{|}{O}}: \ \, \,\,\,\,\,\overset{..}{\underset{..}{O}}= C- \overset{..}{\underset{..}{O}:} \end{matrix} ight] ^{2-} \longleftrightarrow \left[\begin{matrix} \,\,\,\, :{\underset{||}{O}}: \ \,\,\,\,\overset{..}{:\underset{..}{O}}- C- \overset{..}{\underset{..}{O}:} \end{matrix} ight] ^{2-}\longleftrightarrow \left[\begin{matrix} \,\,\,\, :\overset{..}{\underset{|}{O}}: \ \,\,\overset{..}{:\underset{..}{O}}- C= \overset{..}{\underset{..}{O}} \end{matrix} ight] ^{2-}[/latex]

Question 8.2.4: Draw all resonance structures for the carbonate ion, CO3^2−....

Related Answered Questions

Determine polarity of molecules. Determine whether each of the following is polar. a. SO3 b. BrF3 ...

Verified Answer:

Identify molecular geometry. Identify molecular geometry Determine the shape of a. ICl5 b. SO3^2− ...

Verified Answer:

Identify electron-pair geometry. Determine the electron-pair geometry of a. the carbon atoms in acetic acid, CH3CO2H b. SF4 ...

Verified Answer:

Calculate enthalpy of reaction using bond energies. Calculate the enthalpy change for the following gas-phase reaction. C2H6(g) + Cl2(g) → C2H5Cl(g) + HCl(g) ...

Verified Answer:

Use the formal charge for each atom in the cyanide ion, CN^−, to predict whether H^+ is more likely to attach to carbon or nitrogen when forming hydrocyanic acid. ...

Verified Answer:

Three nonequivalent resonance structures for the chlorate ion are shown here. Assign formal charges to all atoms in the resonance structures and identify the more likely resonance structure. ...

Verified Answer:

a. What is the bond order of the nitrogen–oxygen bonds in the nitrate (NO3^−) ion? b. In which ion (NO2^− or NO3^−) are the nitrogen–oxygen bonds longer? c. In which ion (NO2^− or NO3^−) are the nitrogen–oxygen bonds stronger? ...

Verified Answer:

a. Which of the following bonds are nonpolar? C — Cl H — Cl H — H F — F P — H S — O B — F b. Which of the following bonds is most polar? C — Cl H — Cl H — H F — F P — H S — O B — F ...

Verified Answer:

Draw the Lewis structure for a. SCl2 b. CN^− ...

Verified Answer:

a. What is the bond order of the boron–oxygen bonds in the borate ion, BO3^3− ? b. Which molecule has the shortest carbon–carbon bond: C2H4, C2H2, or C2H6? c. Which molecule has the weakest carbon–carbon bond: C2H4, C2H2, or C2H6? ...

Verified Answer: