CHM 1046C                                                              Name:_____________________

Module 4iii - Part Q: Formal Charge             1 point

1.    Using the method of the octet rule, the following structure was drawn:

sulfurTrioxidez

 

 

Assign the formal charge to each atom in the Lewis Structure
by completing the table below:

 

Show the nonzero formal charges on the Lewis structure by

Placing them in circles alongside the atoms

 

 

Formal

Charge

=

Valence

Electrons

-

Nonbonding

Val Electrons

-

Bonding e1-

        2

=

Total   

S

 

 

 

 

 

 

 

 

O=

 

 

 

 

 

 

 

 

O=

 

 

 

 

 

 

 

 

O=

 

 

 

 

 

 

 

 

        

         Sum of the formal charges in the molecule =  ______

 

2.    Using the method of the formal charge, the following structure was drawn:

VSEPRdotSO3Stick

 

 

Assign the formal charge to each atom in the Lewis Structure
by completing the table below:

 

Show the nonzero formal charges on the Lewis structure by

Placing them in circles alongside the atoms

 

 

Formal

Charge

=

Valence

Electrons

-

Nonbonding

Val Electrons

-

Bonding e1-

        2

=

Total   

S

 

 

 

 

 

 

 

 

O-

 

 

 

 

 

 

 

 

O=

 

 

 

 

 

 

 

 

O-

 

 

 

 

 

 

 

 

        

         Sum of the formal charges in the molecule =  ______

 

Explain why the structure in #2 is more preferred than #1!

 

 

 

 

3.Using the method of the octet rule, the following structure was drawn:

VSEPRdotH2SO4stick

 

 

Assign the formal charge to each atom in the Lewis Structure
by completing the table below:

 

Show the nonzero formal charges on the Lewis structure by

Placing them in circles alongside the atoms

 

Formal

Charge

=

Valence

Electrons

-

Nonbonding

Val Electrons

-

Bonding e1-

        2

=

Total   

S

 

 

 

 

 

 

 

 

O=

 

 

 

 

 

 

 

 

O=

 

 

 

 

 

 

 

 

-O-

 

 

 

 

 

 

 

 

H-

 

 

 

 

 

 

 

 

-O-

 

 

 

 

 

 

 

 

H-

 

 

 

 

 

 

 

 

        

         Sum of the formal charges in the molecule =  ______

 

4.    Using the method of the octet rule, the following structure was drawn:

 

 

Assign the formal charge to each atom in the Lewis Structure
by completing the table below:

 

Show the nonzero formal charges on the Lewis structure by

Placing them in circles alongside the atoms

 

Formal

Charge

=

Valence

Electrons

-

Nonbonding

Val Electrons

-

Bonding e1-

        2

=

Total   

S

 

 

 

 

 

 

 

 

-O-

 

 

 

 

 

 

 

 

H-

 

 

 

 

 

 

 

 

-O

 

 

 

 

 

 

 

 

-O-

 

 

 

 

 

 

 

 

H-

 

 

 

 

 

 

 

 

-O

 

 

 

 

 

 

 

 

 

         Sum of the formal charges in the molecule =  ______

 

Explain why the structure in #4 is more preferred than #3!