Percentage dissociation

Moderators: Chem_Mod, Chem_Admin

Pratyush Kandimalla 2O
Posts: 33
Joined: Wed Sep 21, 2016 3:00 pm
Been upvoted: 2 times

Percentage dissociation

Postby Pratyush Kandimalla 2O » Tue Nov 22, 2016 4:26 pm

What happens if percentage of dissociation is greater than 5%? Does it make all our calculations and approximation of (m-x=m) wrong?
Can we not use this if t is greater than 5%?

Manpreet Singh 1N
Posts: 41
Joined: Wed Sep 21, 2016 2:59 pm
Been upvoted: 1 time

Re: Percentage dissociation

Postby Manpreet Singh 1N » Tue Nov 22, 2016 6:04 pm

Hello,

When the percent dissociation is greater than 5%, we can not approximate. We would have to use the quadratic equation to solve for X, to have a more precise concentration.

Hope that helps :)


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

Who is online

Users browsing this forum: No registered users and 1 guest