Q2: Week 2 – 11/22 – 11/23
11/22 – Monday – B Day – 2, 3b/4 Lab
a) To review the weak acid /strong base Titration
b) To identify buffer solutions
c) To use the Henderson – Hasselbach to answer point 3 questions
Period 2: Collect Titration quiz (from the form).
1. Review Lab 11 and the homework form (another weak acid/base titration).
2. Review Past 2 Acid Base Homeworks – YOU MUST BE ABLE TO IDENTIFY which Points on the titration graph ( 1 – 5) you are working with.
Titration Graph Lab questions Key p .pdf
Period 3/4: Collect Titration quiz (from the form).
1. Same as above
From this weekends homework:
|Strong Acid Strong Base
|pH = 7 @ equivalence||only spectators that DO NOT ionize water|
| Weak Acid Strong Base
|pH >7 @ equivalence||Conjugate Base produced reacts with water to produce OH-|
| Strong Acid Weak Base
~Last nights HW
|pH <7 @ equivalence|| Conjugate Acid produced reacts with water
to produce H3O+
The Blood buffers the blood pH so that you survive!!! There are so many organic molecules that have acidic or basic properties that would cause death in our aqueous plasma (fluid part) of our blood.
The main buffer in our blood that prevents large pH changes if the following conjugate acid base pair:
Conjugate Acid Conjugate Base
Sodium Carbonate / HCl (weak base / strong acid Titration): The blood buffer!
End Of Thursday!
Side by side comparison of the 2 types of titrations:
11/23 – Monday Homework: –
Determining Ka, Indicator worksheet review:
End of Monday.
11/23 – Tuesday – A Day – 2/3a Lab, 4
a) To review a weak base strong acid prediction titration curve of 5 points.
b) To perform a weak base strong acid titration (Lab 12)
If Last nights homework was a disaster please do not hand it in. I will have everyone do another prediction graph next week . Please review the key when you get a chance. The titration we did today we will do in class next Monday!
Weak Base Strong Acid Prediction 21-22 key p.pdf View Download
– Lab 1 2 – Weak Base / Strong Acid Titration
10. Confirm the pH of point 3 when _____ml of acid was added to the weak base.
11/24 – Tuesday Homework: –
1. Please enjoy your family and dispell any tryptophan myths!
11/24 – Wednesday – A Day – THanksgiving Eve – Gobble
11/19 – Friday – A Day – Post Thanksgiving.