Which one is a stronger acid- HOCl or HOI?

  • Thread starter zorro
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  • #1
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I know that HI is a stronger acid that HCl because of the weak H-I bond which can break easily in aqueous solution. But I can't understand why HOCl is a stronger acid that HOI (as per my book)?
 

Answers and Replies

  • #2
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Check their structures (hint: H isn't bonded directly to the halogen in either case). How do you think Cl will affect the H-O bond in comparison with I? Think about electronegativities here...
 
  • #3
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I got it. Chlorine being more electronegative atom withdraws oxygen towards itself, facilitating the release of H+
Thanks.
 
  • #4
Borek
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