Post a New Question


posted by .

Draw the Lewis structures for BrO3- and ClO4- and indicate their correct number of additional resonance structures.

I'm a little confused about this. For example, I've got the correct original form of BrO3- down. Where all 3 O atoms are single bonded to Br, and the Br itself contains a lone pair. While each O contains 3 lone pairs. Altogether I've drawn 9 ADDITIONAL resonance structures.

They include having 2 oxygen atoms double bonded to the Br, with those two oxygens having 2 lone pairs. The third oxygen has a single bond to the Br and 3 lone pairs. And the Br itself has a lone pair. I've also drawn the two equivalent structures for this ion. The other ones I've drawn are the Br atom single bonded to two of the O's, which contain 3 lone pairs (the Br also has a lone pair) and double bonded to one of the O's with 2 lone pairs. Plus this one's 2 equivalent resonance structures. Lastly, I've drawn one of the O's triple bonded to the Br and the other two single bonded. Plus the two equivalanet structures for this.

Altogether that makes 9 additional structures for the BrO3-. But would equivalent structures count as additional structures? And also are the structures I mentioned even possible at all, would they count as resonance structures?

  • Chemistry -

    Your Lewis structure for BrO3^- should be trigonal planar with a double bond between the central Br atom and one of the O's. Since the double bond could be with anyone of the O's, you can draw three different resonant structures.

    ClO4^- is tetrahedral with only one stable Lewis structure.

  • Chemistry -

    It's an oxoanion. Br has 7 valence electrons. O has 6 valence electrons. The - means the molecule has one more electron. Can't have a double bond on any of the Os or it breaks the octet rule for both the Br and O.

    Single bonds on all the O and a lone pair.

    Trigonal Pyramidal.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    Please help with this! Draw Lewis structures of all of the important resonance states for the following molecules or ions. Be sure to indicate all formal charges and all unshared electron pairs. H3CCO+ C2H4Br+ C7H7+ (This is a ring …
  2. Resonance structures

    I won't try to draw one here but take for example, CH3CH2COO-. This has two resonance structures but they look the same to me. The CH2-C single bond can rotate and it looks like you can just flip the COO- section and it looks like …

    1. WHAT IS resonance 2. whAT to frequncy of a sound when a car approaches How is resonance used?
  4. Chemistry

    In terms of aromatic compounds, how do I determine which pairs of structures are correct representations of resonance forms?
  5. Chemistry

    Draw Lewis dot structures, including appropriate resonance forms, and assign formal charges to each of those structures, for the molecule urea, with chemical formula NH2CONH2. You should find at least 3 such structures, some of which …
  6. Chemistry

    A student draws four resonance structures for nitromethane (CH3NO2). How many lewis structures should have been drawn to represent nitromethane?
  7. Chemistry

    The compound butane, has two structures. They have the same molecular formula but different arrangements of bonds in their structures. As a result, they can have different chemical and physical properties. Draw the lewis structures …
  8. Chemistry

    In a particular redox reaction, BrO– is oxidized to BrO3– and Cu2 is reduced to Cu . Complete and balance the equation for this reaction in acidic solution. Two half reactions: 1.) Cu^2+ --> Cu^+ 2.) BrO^- --> BrO3^- Balanced: …
  9. Chemistry

    Which statement about resonance structures is TRUE: 1) There can never be more than two resonance structures for any molecule. 2) Only ionic compounds use resonance structures 3) The real structure of a molecule is an average or hybrid …
  10. chemistry

    Draw the dominant Lewis structure for NO2+. Note, that this ion is isoelectronic with CO2. How many double bonds does this resonance structures have?

More Similar Questions

Post a New Question