Sodium hydrogen pyrosulfite, NaHS2O5, contains the metabisulfite anion, which has the following skeletal structure:
O O
l l
H----O-----Sa------Sb----O
l
O
Draw the Lewis(dot) structure for this anion:
What is the geometry around sulfur Sa?
Around Sulfer Sb?
Draw a representation of the 3-D structure of the anion, including only the bonding-pair electrons, and any sulfur lone-pair electrons.
What is the orientation of the oxygen atoms with respect to each other around the S-S bond?