Step 1:Arsenic (EN = 2.18) is much less electronegative than oxygen (3.44) soarsenic is the main atom.

You are watching: Write lewis structure for aso3 3

Step 2:The total variety of valence electrons present in AsO43- is:

Group Valence Electrons

As 5A 1 × 5 e– =5 e–

O 6A 4 × 6 e– =24 e–

From -3 charge: +3e-

Total: 32 valence e–

Step 3:The Lewis structure is:


Step 4: There room 4 domains or teams around main element As:

4 O atoms= 4 domains

• that will require 4 orbitals come accommodate this 4 groups.

Orbitals that deserve to be used by the main atom:

Subshell full # the orbitals

s _ 1 orbit

ns _ _ _ 3 orbitals

d _ _ _ _ _ 5 orbitals

1 s orbit + 3 p orbitals = 4 orbitals (4 groups)

s p p p = sp3

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Problem Details

Draw the Lewis framework of ASO43- mirroring all lone pairs.

What is the hybridization that the main As atom?

a) sp

b) sp2

c) sp3

d) sp3d

e) sp3d2

An AsO43- ion is

a) nonpolar

b) polar

Identify the molecular geometry that AsO43-.

a) linear

b) see-saw

c) square pyramidal

d) trigonal planar

e) t-shaped

f) square planar

g) bent

h) trigonal bipyramidal

i) trigonal pyramidal

j) tetrahedral

k) octahedral

What room the almost right bond angles in ASO43-?

a) 90 degrees

b) 109 degrees

c) 120 degrees

d) 180 degrees

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Frequently inquiry Questions

What scientific principle do you require to know in stimulate to settle this problem?

Our tutors have actually indicated the to deal with this problem you will require to apply the Hybridization concept. You deserve to view video lessons to learn Hybridization. Or if friend need more Hybridization practice, friend can also practice Hybridization practice problems.

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Based on our data, we think this trouble is appropriate for Professor Maxwell's class at UCF.

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