# Solubility Chem 1C

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1. Immiscible
Do not mix
2. Solution
A mixture consisting of a solute and a solvent
3. Solute
Substance being dissolved
4. Solvent
Medium in which the solute is dissolved
5. Solubility
The amount of solute that can be dissolved in a given amount of solvent at a particular temperature
6. Molality
Moles of solute per kilogram of solvent
7. Mass percent
Grams of solute per grams of solution
8. Mole Fraction
moles of solute per moles of solution
9. Ion-Dipole interaction
• -NaCl breaks into ions when dissolved in water
• -Positive and negative ions are stabilized by neighboring water molecules
10. external pressure affects
gas solubility
11. Henry's Law formula
• P=kHX
• for solutes

Pressure of gaseous solute=constant x mole fraction of gas in solution
12. Solids: Solubility v. temperature
If you increase temperature, you increase solubility
13. Gases: Temperature v. solubility
If you increase temperature, you decrease solubility
14. Nonvolatile solution does what to vapor pressure
Lowers it
15. Nonvolatile
Low vapor pressure at room temperature
16. Raoult's Law
Psolution=XsolventPosolvent

vapor pressure of solution= mole fraction of solvent x vapor pressure pure solvent
17. Negative Deviation
P solution lower than expected
18. Positive Deviation
P solution higher than expected
19. Boiling point elevation
-adding a nonvolatile solute lowers vapor pressure of a solution
20. Vapor pressure v boiling point
Lower vapor pressure=higher boiling point
21. Freezing in a solution
Pure solvent freezes out of the solution
22. Freezing point
Vapor pressure of solution=vapor pressure of solid
23. Vapor pressure of solution vs. vapor pressure of ice at 0oC when nonvolatile solute is added
• vapor pressure of solution is lower than the vapor pressure of ice
• -does not freeze at 0oC
24. Vapor pressure v. freezing point
• The higher the vapor pressure, the higher the freezing point
• -Lower vapor pressure shifts position of triple point
25. Colligative Properties
Depends on the total amount of solute
26. Freezing point depression formula
/\Tf=iKfmsolute
27. Boiling point elevation formula
/\Tb=iKbmsolute
28. Osmosis
-Semi-permeable membrane allows solvent, but not solute particles to pass through
29. What happens during osmosis?
• -System tries to equilibrate concentrations
• -Solvent moves across membrane to dilute the solution
• -Increase solution height is related to osmotic pressure (pi)
30. Osmotic Pressure
Additional pressure needed to keep solution and pure solvent levels equal that prevents osmosis from happening
31. Osmotic pressure formula
pi=iMRT
32. Noble gas configuration
Go to noble gas in row above, move across shells until you reach desired atom
33. For elements with 4 or 9 d-electrons
Remove an electron from the s-orbital, add it to the d-orbital
34. When forming metal ions, remove __ first
S electrons

• Fe0=[Ar]4s23d6
• Fe2+[Ar]3d6
 Author: Trekofstarsx ID: 289996 Card Set: Solubility Chem 1C Updated: 2014-11-25 04:47:27 Tags: Chem 1C Folders: Description: Solubility Chem 1C Show Answers: