Determining acidity of solution

Moderators: Chem_Mod, Chem_Admin

Shanzey
Posts: 120
Joined: Wed Sep 18, 2019 12:20 am

Determining acidity of solution

Postby Shanzey » Sat Dec 07, 2019 5:23 pm

If you have a reaction between a strong acid and a strong base, why does that result in a neutral pH? In addition, why does a reaction between a strong acid and a weak base make the solution acidic, and why does a reaction between a strong base and a weak acid make the solution basic?

John Arambulo 1I
Posts: 58
Joined: Sat Jul 20, 2019 12:15 am

Re: Determining acidity of solution

Postby John Arambulo 1I » Sat Dec 07, 2019 5:35 pm

In a strong acid-strong base reaction, both the acid and base ionize completely, so the concentration of H3O+ and OH- would be equal assuming that the concentrations of the acid and base are equal. In a strong acid-weak base reaction, there would be H3O+ ions leftover after completion of the reaction which would make the solution acidic. In a strong base-weak acid reaction, there would be OH- ions leftover after completion of the reaction which would make the solution basic.


Return to “Calculating pH or pOH for Strong & Weak Acids & Bases”

Who is online

Users browsing this forum: No registered users and 1 guest