Title: Buffers
1Buffers
2What controls pH of a buffer?
3(No Transcript)
4(No Transcript)
5(No Transcript)
6What controls pH of a buffer?
7(No Transcript)
8Calculating Buffer pH What is the pH of
a buffer made by mixing 22.2 g CH3CO2H
15.4 g NaCH3CO2 to form a 1-L solution?
9What is the pH of a buffer made by mixing 22.2 g
CH3CO2H 15.4 g NaCH3CO2 to form a 500-mL
solution?
10 We make a buffer containing 0.23 mol NH3 and
0.41 mol NH4Cl. What is the pH?
11Acid-Base Reactions and Buffers strong acids
weak bases react 100 strong bases weak
acids react 100
12We have a buffer made by mixing 22.2 g CH3CO2H
15.4 g NaCH3CO2 to form a 1-L solution. We add 10
mL of 1.00 M HCl to it. What happens what is the
new pH? Part 1. Bulk acid-base reaction
13pH Titration Curves Titrate 25 mL of 0.1 M HCl
with 0.1 M NaOH.
14pH Titration Curves Titrate 25 mL of 0.1 M
CH3CO2H with 0.1 M NaOH.
15(No Transcript)
16(No Transcript)
17(No Transcript)
18pH Titration Curves for Weak Bases
19(No Transcript)
20Polyprotic Acids pH Titration Curve for H3PO4
21Acid/Base States as a Function of pH
22(No Transcript)
23(No Transcript)
24Amino Acid Acid/Base States as a Function of pH
25Amino Acid Acid/Base States as a Function of pH
26Amino Acid Acid/Base States as a Function of pH
27Weak Acid- Weak Base Reactions
28(No Transcript)
29Preparing a Buffer with Desired pH
30(No Transcript)
31(No Transcript)