Solubility
Solubility is the maximum amount of _______ in a _______?
Solubility is the maximum amount of Solute that dissolves in a Solvent.
The equilibrium constant K=?
Concentration of products/ concentration of reactants
A Lewis acid is able to do this.
Donate a proton
What is the concentration of Cl+ if 3.00mol of BaCl2 are put into 500mL of water?
(Assuming it 100% dissociates)
3mol BaCl2 --> 6mol Cl+
6mol/0.5L = 12M
Why can't you trust an atom?
They make up literally everything!
The "sp" in Ksp stands for this.
Solubility product
If K<1, the reaction favors these.
The reactants
Is this an acid or a base?
CH3NH2
Base
The solubility product constant of calcium chlorate (Ca(ClO3)2 of water is 7.10 × 10-7
Find the molar solubility of ClO3-
x = 0.0056M
2x = 0.0112M
If someone tells a chemistry joke but no one laughs then there is __________
No reaction!
A high Ksp value indicates this.
More dissociation
More products
Higher solubility
These are ignored in a K equation
Solids (i.e. a salt) and liquids (i.e. water)
What is the conjugate base of H2CO3?
HCO3-
Bonus: what is the conjugate base of HCO3-?
At 25°C, water dissolves 2.92x10-3 moles of PbCl2 per liter. Find the Ksp of PbCl2.
Ksp = 9.91x10-8
I would tell a chemistry joke but all the good ones _____
Argon!
Write out the equilibrium expression for the equation:
BaCl2(s) + H2O(l) <---> Ba2+(aq) + 2Cl+(aq)
K = [Ba2+][Cl]2
Bonus: what is wrong with the arrow?
If more reactant is added to a reaction, the reaction will shift in this direction
Right
Forward
Towards the products
A substance that can both donate and receive a proton is called this.
Ampholyte
Calculate the pH at which zinc hydroxide (Zn(OH)2) starts to precipitate from a 0.00857 M solution of zinc nitrate (Zn(NO3)2). Ksp for zinc hydroxide = 3.0 x 10-17
x = 5.91657x10-8 M
pOH = 7.228
pH = 6.772
If you think like a proton you might have a _____
When calculating the possibility to separate ions in solution, if Q>Ksp, this will happen.
Both ions will precipitate, and the separation will not work
The dissociation constant of water, Kw, is equal to this.
1.008x10-14
[OH-][H+]
Which is a stronger acid?
H2CO3 (Ka=4.3x10-7)
HC2H3O2 (Ka=1.8x10-5)
HC2H3O2
An aqueous sample contains 0.010 M Ce3+ and 0.010 M Ca2+. Both form insoluble salts with oxalate (C2O42-). The Ksp of CaC2O4 is 1.3x10-8 and the Ksp of Ce2(C2O4)3 is 5.9x10-30. Is it possible to precipitate 99.90% of one ion from the sample by addition of oxalate without precipitating the other ion?
8.4x10-10<Ksp
Yes, separation is possible.
How often do you like to hear chemistry jokes?
Periodically!