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AP Chemistry: Class 72

Dissolving

Dates

  • Period E: Wednesday, February 27th
  • Period F: Wednesday, February 27th

New Material Big Idea: What are the calculations associated with solutions? (molality, FPD, BPE, dilutions)

  • Example 1: If I add 45 grams of sodium chloride to 500 grams of water, what will the melting and boiling points be of the resulting solution?  Kb(H2O) = 0.52 0C/m and Kf(H2O) = 1.86 0C/m.
  • Example 2: Which solution will have a higher boiling point: a solution of 105 grams of sucrose (C12H22O11) in 500 grams of water or a solution of 35 grams of sodium chloride in 500 grams of water?
  • Example 3: Explain how to make 500.0 mL of 1.0 M NaCl from 2.0M stock solution
  • Example 4: Determine the mass of solute in 50 grams of water contained in a 1.0 m CH3OH solution

Homework

  • Ch. 12 (17, 19, 55, 62, 72)

Information

This entry was posted on February 25, 2013 by in CAgenda, Chemistry and tagged , .
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