Assign formal charges to all atoms in the following resonance form for HNO₃. A)0 for all atoms B)+1 for N,-1 for oxygen (c),0 for all other atoms C)+1 for N and H,-1 for oxygen (a)and oxygen (c),0 for oxygen (b) D)+1 for H,-2 for each oxygen,+5 for N

Question

Quizplus · Accepted Answer

To assign formal charges, we follow the formula: Formal charge = valence electrons - (nonbonding electrons + 0.5 x bonding electrons)
N: 5 - (0 + 4) = +1
O (c): 6 - (4 + 2) = -1
O (a): 6 - (4 + 1) = +1
O (b): 6 - (6 + 0) = 0
H: 1 - (0 + 1) = 0
S: 6 - (2 + 2) = +2
Therefore, the best choice is B because it correctly assigns formal charges to all the atoms in the resonance form.

Assign Formal Charges to All Atoms in the Following Resonance