Chapter 14 Flashcards
What are 3 ways to increase the solubility of a SOLID state solute?
Agitation, surface area, and temperature
What are 2 ways to increase the solubility of a GAS state solute?
Temperature (T down = P up) and Pressure (P up = S down)
How does decreasing the temperature of a solution affect the solubility of a solute in the GAS state?
T goes down and S goes up
How does decreasing the temperature of a solution affect the solubility of a solute in the SOLID state?
T goes up and S goes up
What is Henry’s Law?
S1P2 = S2P1
What is the equation for Molarity?
(Moles of solute) / (Liter of solution)
What is the equation for Molality?
(Moles of solute) / (Kg of solvent)
What is Colligative Properties?
The pressure of solutes cause solution to behave differently than their pure solvent
What does Vapor Depression mean?
The solute particles fill positions that are normally occupies by solvent molecules
Vapor Pressure drops
What does Boiling Point Elevation mean?
The presence of solutes often raise the boiling point of the solutions
Temperature needed to boil goes up
What does Freezing Point Depression mean?
Solute particles make it harder for H2O molecules to freeze into ice
Temperature needed to freeze goes down
What does D.F. mean?
The number of pieces a compound breaks into
I
What is the D.F. (I) of CaCO3?
2
What is the equation to find the change of FREEZING point?
(m)(I)(Kf)
What is the equation to find the change of BOILING point?
(m)(I)(Kb)
