Question

Lab 8 Data and Results Questions 1. The bond energies (the energy required to separate molecules into atoms) and the bond lengths are shown for the molecules N, O, and Cl Draw the Lewis structures of these molecules. What is the bond order (the number of bonds) in each molecule? Cl, Bond orders: N,. a. State the correlation between the bond energies and the bond orders b. bond lengths and the bond orders of the molecules c. The molecules PF, and AsFg exist, but the analogous molecule NF, does not. Why not? 2. 3. For the molecule N,O there are five possible Lewis structures that satisfy the octet rule. Thre have the N-N-O bond skeleton and two would have the N-O-N skeleton. Draw the five Lewis structures. a. By considering the formal charges, can you suggest which structures might be elimina. b. Which structures have the smallest formal charges? c.

Answer 1

the solution is below :

ANG Bond Bond Bond order of N₂ = 3 order of ₂=2 order of C2=1. 6 Correlation between bond energies and bond orders =) The higher the bond order the highess the bond - energies. So, the relation is directly proportional Correlation between bond lengins f bond orders =) The higher the bond order the shortess the bound - length. - .. Due to presence of vacant 3d & 4d orbitals in 'P' & À Ś respectively, they can easily from PFS & Asfe like compounds. But due to the absence of & orbital in 'N' NFS does not exist @ Fire Lewis structures of N2O... formal charge () - =ó -> A = 0, 1, 0, 0 - 0 (in) :NEN - - NA = 0, NB:0, 0 = 0 ( AN = R0 NA=0, No -1 , O art (iv) N =Ö - NA --L, NB = 1, 0-0 N ? – NA = -2, Ng= 1,0-1 1 ♡ By considering foronal charges, the structure (V) can be eliminated. o The structures in & (i) a have the smallest formal charges.