mid 1 - 1 1. Which of the following compounds is least...

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1. Which of the following compounds is least soluble in hexane, C 6 H 14 ? ---> a. CH 3 OH b. CH 3 CH 2 OH c. CH 3 CH 2 CH 2 OH d. CH 3 CH 2 CH 2 CH 2 OH e. CH 3 CH 2 CH 2 CH 2 CH 2 OH 2. During the formation of any solution, which process is always endothermic ? a. the separation of solute particles from one another b. the separation of solvent particles from one another c. the mixing of solvent with solute d. the overall enthalpy change of solution ---> e. both a. and b. 3. When solute and solvent are added together to form a solution: a. the enthalpy change of solution is endothermic b. the enthalpy change of solution is exothermic ---> c. the entropy change is positive d. the entropy change is negative e. all of the above are possible 4. A solution of sucrose (table sugar) is in equilibrium with solid sucrose at the bottom of a flask. If more solid sucrose is added with stirring, then: a. the concentration of the solution will increase b. the concentration of the solution will decrease ---> c. the concentration of the solution will remain the same d. the volume of the solution will increase e. a supersaturated solution will result 5. Methane (CH 4 ) has a Henry's Law constant (k H ) of 9.88 x 10 -2 M /atm in benzene at 25 °C. How many grams of methane will dissolve in 3.00 L of benzene at 25 °C if the partial pressure of methane above the solution is 1.48 atm? a.
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This note was uploaded on 10/07/2009 for the course CHEM 1022 taught by Professor Leopold during the Fall '08 term at Minnesota.

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mid 1 - 1 1. Which of the following compounds is least...

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