WHAT determines if an acid will be strong or weak?

Answer 1

The ability of dissociation and the concentration is what causes an acid to be strong or weak. If it is strong, it will dissociate in water and have a pH lower than 7. A weak acid will partially dissociate in water, and it will have a pH of 7 or greater.

Answer 2

In water only 7 acids are strong: (from strongest to strong)

HClO4, HI, HBr, HCl, H2SO4, HNO3, HClO3 are all 'stronger' then H3O+ (Ka(H3O+) = 1)

All the rest of them are weak acids , Kacid <<1

Answer 3

Depending on what is meant by strength. In chemistry a acid is classified as "strong" if complete dissociation of all H+ occurs. HCl is a strong acid for example. But if you are regarding it in terms of the ability to dissolve it can still be regarded a weak acid in terms of chemistry. e.g hydrofluoric acid can dissolve glass, but since full dissociation does not occur it is not a strong acid.!

Answer 4

pH value determines whether an acid will be strong or weak. pH stands for the "power of Hydrogen ions." The number of ions determine how if a solution is a basic or acid.

pH scale starts from 0-14 where 7 is the neutral. The number of hydrogen ions and hydroxide ions are equal.

The number/concentration of Hydrogen ions (H+) in a solution is determines the solution's pH (whether or not it is basic or acidic).

Answer 5

The fact the ions completely or partially dissociate in an aqueous solution.

Answer 6

The strength of an acid depends on the concentration of hydronium ions.

Answer 7

An acid is strong if it gives up it's hydrogen ion easily, if not it is a weak acid.

Answer 8

This depends on the level of dissociation of acids or bases.