Download Ch9 Sample Problem #9

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PROBLEM: Draw the Lewis structures of the acid HPO2F2 and its anion PO2F2–. What
is the molecular geometry and hybridization for the phosphorus atom in each species? (H
is bonded to an O atom in the acid.)
Step 1: Draw the Lewis structure
HPO2F2
_
|F|
_
|
_
H – O – P – O|
|
|F|
PO2F2–
Step 2: Molecular geometry and hybridization
HPO2F2
and
4 shared pair
No unshared pairs
Tetrahedral – sp3
PO2F2–
_
|F|
_
|
_
|O – P – O|
|
|F|
–

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