When do we know to change the X to zero so that we do not have to do the quadratic formula?
Does this change when there is now multiple reactions happening as in a solution that has a weak acid and salt that disassociates.
An Equation with both Weak Acids and Salt
Moderators: Chem_Mod, Chem_Admin
-
VivianaHF2L
- Posts: 29
- Joined: Fri Sep 28, 2018 12:20 am
-
whitney_2C
- Posts: 74
- Joined: Fri Sep 28, 2018 12:28 am
Re: An Equation with both Weak Acids and Salt
We never really change X to zero because if X is 0 then that means that some of the concentrations for reactant/products at equilibrium are zero which doesn't make sense, but we do neglect the X if it is added or subtracted from a concentration in our K expression if the K value is less than 10^-3.
Return to “Equilibrium Constants & Calculating Concentrations”
Who is online
Users browsing this forum: No registered users and 10 guests