c103-sp10-0407 - Chemistry 103 Spring 2010 Today 1....

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Chemistry 103 Spring 2010 Today 1. Leftovers from Chapter 14 2. Acids, bases, and titrations. Announcements 1. OWL homework for Ch. 14 is active. 2. ADD deadline on Apr. 12, Monday. 4. First midterm exam on Apr. 19 or 21. 5. CSULA closure on May 21 (furlough). 6. CSULA closure on May 31 (holiday). 7. Bring textbook and calculator to each lecture. "Principles" edition: Homework Problems (Week Due) 3rd edition Ch 14: 23, 50, 63, 72, 77 (2) Ch 15: 31, 69, 102, 113, 119 (2) Ch 15: 38, 47, 55, 62, 64 (3) Ch 16: 58, 75, 97, 106, 111 (3)
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Chemistry 103 Spring 2010 2 Other factors affecting solubility Increasing the temperature of the solvent increases the solubility of dissolved solids. Fig. 14.11 (everyday experience) Increasing the temperature of the solvent decreases the solubility of dissolved gases. Fig. 14.10 (opposite of dissolved solids) Increasing the pressure of a gas above a solution increases the solubility of that gas (picture of carbonated soda, p. 515). Henry’s Law: Solubility gas = k H x Pressure gas
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3 Units molarity = moles of solute = mol = M volume of solution L molality = moles of solute = mol = m kg of solvent kg mole fraction = moles of component moles of total mass fraction = grams of component grams of total weight% = grams of component x 100% grams of total 1 ppm = 1 gram of solute = 1 x 10 -3 g 10 6 grams of solution 10 3 g = 1 mg / 1 kg
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c103-sp10-0407 - Chemistry 103 Spring 2010 Today 1....

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