Strength of Acids

[Lauryn Shinno 2H]

Given lewis structures, how can you tell if one acid is stronger than another?

[Ashley Kim]

You can tell by finding the hydrogen that will be donated to form a hydronium ion, and then determining which bond between that hydrogen and the rest of the molecule is stronger.

[MinaChoi_3H]

Another way you can identify the strength of acids is that acidity increases with electronegativity and also increases with atomic radii.

[804991762_4A]

Acids strength increases as you go across the right and down and if H is attached to the element and if its not then the trend doesn’t apply. (This is for binary acids) Has to deal with atomic size

For oxyacids, electronegativity is the determining factor so the trend is the opposite. The acid strength increases due to the increase in electronegativity. (If H is attached to the oxygen)