Some Gen Chem Thoughts

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sacjumpman

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Please correct me if I'm mixing anything up. I'm just trying to get some stuff clear in my head.

Acid Strength


HI > HB > HCl >>> HF

Why? Acid strength is most largely determined by the H-X bond energy. Thus, H-I bond is weakest, therefore it is the strongest acid.


HOCl > HOBr > HOI

Why? In this case, the bond energy is the same, an O-H bond in each case. Therefore, electronegativity is the major factor. The more electronegative the halogen, the better the conjugate base is stabilized, therefore, the stronger the acid.


HBrO4 > HBrO3 > HBrO2 > HBrO

In this case, it is similar to above. The more electronegative oxygens, the more stable the conjugate base by induction, the more acidic the conjugate acid.
 
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