Portfolio Page: Solutions
define and apply the solubility rule by determining polarity
Polar Solute & Solvent
Non-Polar Solute & Solvent
draw the diagrams for water solvent dissolving
the Na+ and Cl- ions
Explain how non-polar solutes are dissolved
read a solubility curve
-define each term
-identify an appropriate point
use
colored
pencils
saturated-
unsaturated-
supersaturated-
Specifically, how would you prepare a
supersaturated solution with 150 grams of
KNO3 dissolved in 100 grams of water at 60˚C?
__________ How many grams of solute can be dissolved in 100 grams of water at 20˚C?
__________At what temperature will 150 grams of solute in 100 grams of water be saturated?
If you have 190 grams of solute dissolved in 240 grams of water, is the solution saturated,
unsaturated, or supersaturated?
explain factors that affect the solubility of gas and solid solutes
Temperature-
solid solute
gas solute
TemperaturePressure (Henry’s Law)-
T. O’Toole
calculate molarity and mass of solute required
Calculate the molarity if 40.0 grams of potassium permanganate are dissolved in a 250 ml
volumetric flask.
How would you prepare (what mass of solute is required) to prepare 500 ml of .15M cupric
nitrate?
ml solvent unknown
calculate molality and mass of solute required
Calculate the molality if .75 grams of calcium hydroxide are added to 200 grams of water.
How would you prepare (what mass of solute is required) to prepare a .28m solution if 500 grams
of water are available?.
g (ml) solution unknown
calculate percent mass and mass of solute
Calculate the % if 0.059 grams
of solute are dissolved in 10.0
grams of solvent.
Calculate the grams of solute
required to prepare 150.0
grams of a 7.5% solution.
Calculate the grams of solute
required to prepare a 14%
solution if 100 grams of water
are available.
+
use colligative properties to calculate temperature change and formula weight of the solute
____ NaCl
____CH3OH
____Ca(OH)2
Volatile/Ionic Solutes
• Formed from criss-cross
• Fall apart into ions
• CaCl2 #=3
Non-Volatile/Molecular Solutes
• Not formed by criss-cross
• #=1
Calculate the new freezing point and the new
boiling point of a solution containing 40.25
grams of sodium chloride dissolved in 100.0
grams of water. Kf=-1.86˚C/m and
Kb=.512˚C/m
Calculate the formula weight of an ionic solute
(C2X) if 16.20 grams are added to 250.0 grams
of water. The solution boils at 110.5˚C.
R
T. O’Toole