Acids And Bases Worksheet - Michalek, Unit 14 Page 8
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27AP Chemsitry--Michalek
8
Unit 14 Acids and Bases
6.
7.
8.
9.
10.
11.
What happens to the percent dissociation as the initial concentration of acid increases?
Notes 14.5
Solving weak acid problems
List the major species in the solution
Write a balanced reaction for the reactions producing hydrogen ions
Write the equilibrium expression
Set up ICE (initial change equilibrium) chart
Solve for x the easy way [HA]
– x = [HA]
o
o
Use the 5% rule to see if this assumption is valid
Calculate [H
+
] and pH
Example
-4
What is the pH of a solution of HF if the K
= 7.2 x 10
?
a
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