1.Use the structure below to answer the following questions. Note: the structure

Question

1.Use the structure below to answer the following questions.

Note: the structure below does not reflect its true 3-D shape. You should add lone pairs as needed so that each non-hydrogen atom obeys the octet rule.

http://www.webassign.net/userimages/kasandbe@ncsu/CH101_Exam3ah.gif

a) number of sigma bonds in the entire molecule__

b) number of pi bonds in the entire molecule___

c) Select the hybridization of the indicated atom.

     a) sp/ sp^4/ sp^3/ sp^2    b) sp/ sp^4/ sp^3/ sp^2    c)sp/ sp^4/ sp^3/ sp^2

d) Give the approximate values of the indicated angles.

Choose from the following values: 60, 90, 109, 120, 180.

alpha:                 beta:                   gamma:

2.Give the formal charge of the indicated atom.

All hydrogens and lone pairs are shown.

http://www.webassign.net/userimages/kasandbe@ncsu/CH221_ssii_02/CH221_HW1e_ssii_02.gif

Input format for non-zero formal charge: sign and then number, something like: -1

atom 1 ____

atom 2 ____

atom 3 ____

Use the structure below to answer the following questions. number of sigma bonds in the entire molecule number of pi bonds in the entire molecule Select the hybridization of the indicated atom. sp/ sp^4/ sp^3/ sp^2 b) sp/ sp^4/ sp^3/ sp^2 c)sp/ sp^4/ sp^3/ sp^2 Give the approximate values of the indicated angles. Choose from the following values: 60, 90, 109, 120, 180. alpha: beta: gamma: Give the formal charge of the indicated atom. All hydrogens and lone pairs are shown. Input format for non-zero formal charge: sign and then number, something like: -1 atom 1 atom 2 atom 3

Explanation / Answer

answers

1.

a) Total number of sigma bonds in the entire molecule is 15

b) total number of pi bonds in the entire molecule is 3

c) (a) SP2 (b) SP (c) SP3

d) alpha : 120 (as SP2 hybridization) beta: 180 ( as it is SP hybridization) gamma: less than109 ( ~107.5 as it is Td shape and bond pair and lone pair repuslsion)

2.

We know that formal charge , EC = V - ( N+ B/2)

where Where V is the number of valence electrons of the atom in isolation (atom in ground state); N is the number of non-bonding valence electrons on this atom in the molecule; and B is the total number of electrons shared in covalent bonds with other atoms in the molecule

atom 1 : FC = 4 - (0 + 6/2) = 1

atom 2 : FC = 4- (0 + 6/2) =1

atom 3 : FC = 6 - (6 + 2/2) = -1   

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.