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Unformatted text preview: 2 O 4 2-. b) What is the average carbon-oxygen bond order in the oxalate ion? c) What is the average formal charge on each oxygen atom in the oxalate ion? d) Give the geometry around the C atoms in the oxalate ion. 3. N 2 O has a linear, unsymmetrical structure that may be thought of as a hybrid of two resonance structures. Draw the two resonance forms of N 2 O. 4. Phosphoric acid, H 3 PO 4 , contains three O-H bonds. When one mole of phosphoric acid reacts with one mole of sodium hydroxide, sodium dihydrogen phosphate, NaH 2 PO 4 , results. a) Draw adequate Lewis structures for H 3 PO 4 and H 2 PO 4 − . b) Calculate bond orders for all the phosphorus-oxygen bonds of H 3 PO 4 and H 2 PO 4 − . c) Calculate the formal charges on each O atom in H 3 PO 4 and H 2 PO 4 − ....
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This document was uploaded on 03/29/2012.
- Spring '10