Write an equation to show the acidic nature of the following substances in aqueous solution

Question

a) HClO2

b) HOBr

Please explain to me how you get these equations, the textbook resource that I was given doesn't really help me at all. Thanks!

Answer 1

HClO2 + H2O <=> H3O+ + (ClO2)-

HOBr + H2O <=> H3O+ + BrO-

Answer 2

HClO2 + H2O <======> (H3O)+ + (ClO2)-

HOBr + H2O <========> (H3O)+ + (BrO)-

strength of acid is determined by the Ka and pKa value of an acid

Answer 3

HClO2 + H2O -> H+ + (ClO2)- + H2O -> H3O+ + (ClO2)-

b) is not an acid, it is a base.

You need to look up dissociation in textbooks. Basically acid forms H+ ions in an aqueous solution, this is known as dissociation. Look up Bronsted model on Google, and I am quite sure you will find it, its quite common and basic stuff.

Answer 4

HClO2 + H2O <=> H3O+ + (ClO2)-

HOBr + H2O <=> H3O+ + BrO-

(equilibrium sign as both are very weak acids.)