Note Taking Guide: Episode 1003
Name ______Ricardo Alvarez________
CHEMISTRY: A Study of Matter
© 2004, GPB
10.15
Molarity (M)
•expresses ____solution___________ _____concentration__________
•M = ___moles of solute over _liters of solution___________
•_____molarity__________, _______molar________, ___M___, and
__mol/liter_____________ all
represent the same ratio.
Ex #1. A saline solution contains ___.90_____ g of NaCl per
____95____ mL of solution. What is its molarity?
M = _____moles of solute over liters of solution_________________
Ex. #2How many moles of solute are contained in ___2.5____ L of
_____.30_____ M CaCl2?
Colligative Properties
•Any of the _____properties__________ of a ______solution_________
that change when the
_______concentration________ of the ________solution_______ changes.
•Depend
on the _____number__________ of ______particles_________
dissolved in a given _______mass________ of ______solvent_________
•Examples
of Colligative Properties:
a. Vapor ____Pressure___________ Depression--the
______lowering_________ of the _vapor____
_____pressure_____ _______________ of a liquid
that occurs when substances are _________dissolved______ in the
_____liquid__________.--Vapor Pressure: the ____pressure___________ of
a _____vapor__________ in _______equilibrium________ with its
_____liquid__________
b. Freezing _______point________ Depression
-the _______lowering________ of the ______freezing_________
_______point________ of a liquid that occurs
when substances are _______dissolved________ in the
______liquid_________.
(ex. using _____________ in car radiators and ________ on icy
roads)
c. Boiling ______point_________ Elevation--the
_______raising________ of the ________boiling_______
_____point__________ of a liquid
that occurs when substances are _____dissolved__________ in the
_____liquid__________.
--boiling occurs when ______vapor_________ ______pressure______
___ equals ______external_________ ______pressure_________.
(ex. ______________ in a car acts as a coolant in the sum
mer.)
•More Examples of Colligative Properties:
______color_________ ,______taste_________, _______density________