CHAPTER 6 physical properties of solution

CHAPTER 6 physical properties of solution - ISO 9001:2000...

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CHAPTER 6 PHYSICAL PROPERTIES OF SOLUTIONS ISO 9001:2000
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Physical Properties of Solution 6.1 Type of Solutions 6.2 Concentration Unit 6.3 The Effect of Temperature and Pressure on Solubility 6.4 Colligative Properties 6.5 Strong and Weak Acid-Base 6.6 Acid-Base Reaction
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6.1 TYPES OF SOLUTION 1) Saturated solution: A solution that contains the maximum amount of a solute in a given solvent , at a specific temperature. 2) Unsaturated solution : It contains less solute than it has the capacity to dissolved . 3) Supersaturated solution: Contains more solute than is present in a saturated solution.
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6.2 Concentration units TYPES OF CONCENTRATION UNITS: 1) PERCENT BY MASS : Also called the percent by weight or the weight percent. 2) MOLARITY (M): The number of moles of solute in 1 L of solution. Mole= Mass / molar mass (M/lit) 3) MOLALITY (m): The number of moles of solute dissolved in 1 kg (1000g) of solvent.
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10 g / 260 g = 3.8 % W/W 30 mL / 280 mL = 11% V/V (in reality may be off) 8.0 g / 100 g = 8% W/W EXAMPLES: 1. What is the % W/W of copper in an alloy when 10 g of Cu is mixed with 250 g of Zn? 2. What is approximate % V/V if 30 mL of pure ethanol is added to 250 mL of water? 3. What is the % W/W if 8.0 g copper is added to enough zinc to produce 100 g of an alloy?
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6.3 The Effect of Temperature and Pressure on Solubility
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