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CH302iclickerquestions020410

CH302iclickerquestions020410 - Evaluate this statement...

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Evaluate this statement: Plants are taking relatively organized molecules (simple CO2 and H2O) and produce a chaotic mixture of molecules during the growth process. This must be since plants DO grow spontaneously, and it is necessary that the entropy of a spontaneous process must increase, i.e., the 2nd Law of thermodynamics. A. True B. False
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An aqueous solution freezes at -2.0oC. At what temperature will it boil? A. 0.55 oC B. 99.45 oC C. 100.55 oC D. 105.5 oC
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46.7 g of a water soluble, non-volatile, non-ionic organic compound is added to 500 mL of water and lowers the freezing point of the solution by 0.70 Kelvin. What is the approximate molecular weight of the compound? A. 20 g B. 60 g C. 120 g D. 250 g
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The system below contains a semipermiable membrane. The volume of the chambers are 50.0 mL for the water and 45.0 mL for the CaCl2 solution. (solution density = 1.05 g/mL) An added pressure, P, of 0.22 atm is applied to the piston to maintain the volumes occupied by the water and salty water.
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