Identifying Acids and Bases Video Lessons

Concept: Identifying Binary Acids.

# Problem: Which of the following is the strongest acid?A) HClO2B) HIOC) HIO2D) HClOE) HClO3

###### FREE Expert Solution

We’re being asked to identify the strongest acid.

All of the given compounds possess an Hion connected to a nonmetal and oxygen (or H+ + negative polyatomic ions + oxygen/s)therefore they are all oxyacids. We can compare their strengths using the following guides:

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

1. When the oxyacids have an equal number of oxygens. We’ll rank their strength based on the electronegativity of the nonmetal in each oxyacid. The oxyacid with the nonmetal with the highest electronegativity will be the strongest oxyacid.

2. When the oxyacids have a different number of oxygens and the same nonmetal. We will rank them based on the number of oxygens and hydrogens in the oxyacid. The more oxygens are the more acidic.

Let's first take a look if there's a strong acid among the given:

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###### Problem Details

Which of the following is the strongest acid?

A) HClO2

B) HIO

C) HIO2

D) HClO

E) HClO3