ProblemID-70810593 formal Charges and Resonance previous I 2of6 ect Pc /valence

Question

ProblemID-70810593 formal Charges and Resonance previous I 2of6 ect Pc /valence e in mal Chagos and Rosonanoo nonbonding e bonding e free atom 3 shown omal change FC keeps tack which lectors an Towns chemica bond equation Part A For a suoreen acid the eams are manged as placement ai is an exception to the of punins mere electronogaivaalem in a more than one vald Lewis structure can be WhM he formalchage an eachof atoms? the formal charges the same order Thw most favorable as the anams are isaad Express you ascharges separated by comma For example, positive one CTO:

Explanation / Answer

Part A:
H has no unbonded electrons
O has 4 unbonded electrons
F has 4 unbonded electrons and
O has 6 unbonded electrons (one lone pair is donated from F)
In order of HOFO (from left to right)
On H = 1 - 1 = 0
On O = 6 - 2- 4 = 0
On F = 7 - 2 - 4 = +1
On O = 6 -1 - 6 = -1
Part B:
Assume that N is the most electronegative atom, the most favorable structure is the one where the formal
charge for N is -1 , structure A more favored
you can calculate formal charges on each structure to decide what's most favorable.

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