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Ch 8 Solubility

Ch 8 Solubility - Chapter 8 Problems Chemistry 101 Nielson...

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Chapter 8 Problems Chemistry 101 Nielson 1. Decide whether the following combinations will result in a solution. a. I 2 in water b. NaCl in CCl 4 c. Hg in Au d. CH 3 CH 2 CO 2 H in water 2. What three interactions must be considered to know whether a solute will dissolve in a solvent? 3. Explain (using intermolecular interactions) why water and decane (C 10 H 22 ) are not soluble. 4. Scuba divers have to beware of “the bends” which occurs when N 2 gas bubbles are released from the blood too quickly. This happens when a diver surfaces too quickly. Explain why this happens in terms of the affect of pressure on solubility of a gas. 5. Why is a gas less soluble and a solid more soluble in water when the temperature increases?
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6. Give the net ionic equation and spectator ions for the following reactions: a. PbNO 3 (aq) + NaCl (aq) ------> PbCl(s) + NaNO 3 (aq) b. aqueous solutions of copper (II) chloride and sodium hydroxide ------> c. AgNO 3 (aq) + NaCl (aq) ------> 7. What does it mean if you have a 5.70 mass % aqueous solution of NaCl?
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