Achieve Week 10 #12

[Briana Chavez 3F]

"Arrange the oxoacids of bromine according to strength.
Strongest Acid to Weakest Acid: HBrO4, HBrO3, HBrO2, HBrO"

Hello! I see that the compound becomes a weaker acid with the decreasing amount of Oxygen atoms. Can anyone explain why this happens?

[Genelle Marcelino-Searles 2G]

With less oxygens, the bond to the hydrogen becomes stronger. This makes the acid weaker because it is more difficult to remove the H+.

[Molly McAndrew 1 1H]

As the number of oxygen atoms increases, the strength of the bond to hydrogen decreases. Therefore, as this bond decreases, the strength of the acid increases. Remember, a strong acid is one that can easily give up H⁺.

[Reagan Feldman 1D]

If the strength of the hydrogen bond decreases, then the strength of an acid increases. With more oxygen atoms present, the strength of the hydrogen bond will decrease, hence the solution with the most oxygen atoms is the strongest acid.

[RossLechner3E]

The electron density is pulled increasingly away from the hydrogen as we add oxygen. This decreases the bond strength and thus the hydrogen is more likely to dissociate and thus the acid increases in strength, hence why the compounds with more oxygens are stronger acids.

[Neha Jonnalagadda 2D]

As the number of oxygens decreases, the bond between the H and the Br increases in strength. This means that the compound is less likely to dissociate and therefore is a weaker acid.