Concentration

(Lecture id-1117)

TOPICS & OBJECTIVES

1010 - Concentration
    1004 - Distinguish between concentration and solubility.
    1006 - Define molarity, molality, and mole fraction.
    1008 - Identify the advantages of molarity, molality, or mole fraction in describing concentration.
    1010 - Calculate molarity, molality, and mole fraction from quantities of solute and solvent.
    1020 - Use molarity, molality, or mole fraction as a conversion factor.
    1030 - Convert molarity, molality, or mole fraction to mass percent.
 
1040 - Colligative Properties
    1010 - Define, identify and give examples of colligative properties.
    1040 - Use BP elevation and FP depression data to determine the molar mass of solutes.
    1045 - Define and explain osmotic pressure.
    1050 - Predict the direction of solvent flow across a semi-permeable membrane from solution concentration.
    1110 - Define an ideal solution.
    1120 - Use Raoults law to relate the vapor pressure of a pure substance to the mole fraction of that substance in solution and vapor pressure of that solution.
    1130 - Apply Raoults law to a solution with multiple volatile components.
    1140 - Predict and describe deviations from Raoults law based on very strong or very weal solute-solvent intermolecular forces.
    1145 - Identify the Vant Hoff factor (i) for a strong electrolyte and use it for calculating colligative properties.
    1150 - Explain observed deviation of i (Vant Hoff factor) from what would be expected by stiochiometry.
 
1050 - Colloids
    1010 - Recognize mixtures may be heterogenous, homogenous (solutions), or colloidal dispersions (colloids).
    1020 - Explain why colloids do not settle (like heterogenous dispersions).
    1030 - Explain why colliods they a hazy or opaque appearance (unlike solutions) which produces the Tyndall effect.
    1040 - Predict which type of mixture will likely form based on diameter of solute (less than 1 nm, greater than 1000 nm, or between).
    1050 - Classify a mixture by properties of clarity and tendency to settle.
    1060 - Describe the formation of micelles in solution.
 


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