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Chemistry 4 Online
OpenStudy (anonymous):

Help me please!! Due on Friday. a. Calculate the mole fraction of C2H6O2 in solution with water if thr solution has a vapor pressure of 1.00 atm 110 degrees C. b. Calculate the number of grams of polystyrene (molar mass 4.2 X 10^4 g/mol) dissolved in C6H5CH3 to form 0.100 L solution, if the ostmotic pressure of solution was 9.1 torr at 25 degrees C. c. A reaction is a first order reaction. What is the half life is the rate constant is 3.44 X 10^-3 S^-1?

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