Lab4-Chemical Equilibrium - HMcElhinney.docx - Your Name:...

Your Name: Hannah McElhinney
Date experiment performed: 2/28/20
Lab Partner: n/a
Name of Lab: Chemical Equilibrium
Laboratory Notebook/Proof of Experimentation

Pre-Lab Questions :
1. Differentiate between Kp and Kc. Kp is used with gasses and is related to Kc (Keq for concentrations) by the equation
Kp=Kc(RT)^(DeltaN)
2. Describe the acid ionization constant. Ka (the acid ionization constant) describes how much acid dissociates in solution.
3. Describe the base ionization constant. Kb (the base ionization constant) describes how much base dissociates in solution.
4.
Purpose :
We are performing this lab to explore equilibrium constants, to observe acid-base titrations and the equivalence point using a
Tumeric indicator. We will be starting with our 4.5% Acetic Acid and Tumeric indicator in distilled water mixture and then slowly
adding drops of 0.1M Sodium Hydroxide. Then we will be adding 8 drops (equaling approximately .5mL) of Sodium Hydroxide and

then recording the pH level of the acid-base solution. During this process we will be watching for the solution to change color which