Contribution of Autoionization
- Ignore autonization if :
⎫Don't forget about the age old question of What pertains to the amount of heat energy required to raise the temperature of 1 gram
of a substance by 1 degree Celsius?
Strong acid: ⎬
Weak acid: ⎭
- If you can’t ignore, remember:Don't forget about the age old question of What is the goal of the Coulomb Experiment?
↓ stoichiometryDon't forget about the age old question of What are the types of motion?
↓ water is the only source of OH-If you want to learn more check out What is a coordinaate system?
We also discuss several other topics like What are the forces acting on spring problems?
* strong acid:
* weak acid:
Weak Acids/ Bases Approx Negligible Ionization:We also discuss several other topics like Explain the function of impulse in kinetic energy.
- calculate pH 1.0m
I 1.0 - 0 0
C -x +x +x goes toward product
E 1.0-x x x
Approx because weak, ka is very small
pH = 2.37
Remember Approximation of weak acid/ base ionization is only negligible when % dissociation < 5%
% dissociation = ✔
Typically, we can use approximation when
Common Ion Effect: Le Chatelier's Principle:
Calculate pH given 1.0m
I 1.0 - 0.5 0
C -x +x +x more in forward direction
E 1.0-x 0.5+x x
because x is really small
✔ ⎪ both assumption
⎬are less than 5%
2) ⎪sp the approximated
✔ ⎭pH of  is correct
Increased decreased → dissociation
→ log of both sides