Acids
What kind of Acid is HBr?
Strong Acid!
What kind of base is NaOH?
Strong Base!
They are the same!
For a given reaction at equilibrium
A + B -> C + D
How will the concentration of B change when you add more D?
[B] will go up!
What is the name of the river that runs under the Autzen Bridge near UO?
The Willamette River
What kind of Acid is H2SO4
Weak Acid!
What kind of base is NH3?
Weak Base!
If there are more products than reactants at equilibrium, what does this say about the value of K?
K is greater than 1
For a given reaction at equilibrium
A + B -> C + D
How will the concentration of A change when you remove some concentration of D?
What was the animal mark used in the equilibrium analogy on the second day of class?
Penguins!
What kind of acid is CH3COOH?
Weak Acid!
What is the pOH of a 0.5 M solution of LiOH?
pOH = 0.30
If Q is less than K, in what direction does the reaction proceed?
For a given reaction at equilibrium
A + 2B -> C + 3D
The volume of the reaction is initially 5L, and is instantaneously changed to 1L. How will this change the concentration of C?
[C] will go down!
Who was Eugene's most famous running athlete?
Steve Prefontaine
What is the pH of a solution of 0.2M NH4+?
Ka=5.6 x 10^-10
4.97
What is the pOH of a 0.3 M solution of Ba(OH)2
pOH = 0.22
For a given reaction A+B -> C+D
If K is 2.5 and these are the initial conditions:
[A] = 1M [C] = 2M
[B] = 0.5M [D] = 0.25M
Which direction will the reaction proceed in?
Forward Direction!
For a given reaction at equilibrium
A + B -> C + D
How will the concentration of B change when you add concentration of A?
[B] will go down!
The Science Library!
Ka = 3.52 x 10^-5
What is the pH of a 0.25 M solution of NH3?
Kb= 1.8 x 10-5
pH = 11.33
For a given reaction A+2B -> C+2D
If K is 0.1 and these are the initial conditions:
[A] = 1 M [C] = 2M
[B] = 0.75 M [D] = 0.25M
Which direction will the reaction proceed in?
Reverse direction!
For a given endothermic reaction at equilibrium
3A + B -> 2C + D H=65kJ
How will the equilibrium constant K respond?
K will become larger!
What is the name of the tree that produces all of that fuzz in Eugene in the spring?
The Black Cottonwood Tree!