Problem: Which one of the following is the strongest acid?A) HIO3B) HIO2C) HIOD) IO4-E) I -

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We’re being asked to identify which of the given would be the strongest acid.

Recall from the Bronsted-Lowry definition that acids are proton (H+) donors. Only HIO3, HIO, and HIO have H+ to donate.

The strength of oxyacids is based on the number of oxygens or the electronegativity of the nonmetal in the oxoacid. An oxyacid is considered strong when there are at least 2 or more O than H.

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Problem Details

Which one of the following is the strongest acid?




D) IO4-

E) I -

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Our tutors have indicated that to solve this problem you will need to apply the Identifying Acids and Bases concept. You can view video lessons to learn Identifying Acids and Bases. Or if you need more Identifying Acids and Bases practice, you can also practice Identifying Acids and Bases practice problems.