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Suppose the normal freezing point of cyclohexane is 6.55 C. While 0.458 g of benzophenone is dissolved in 15.0 g of cyclohexane, the freezing point is found to be 3.19 C. Explain what is the experimental molar mass of benzophenone? Kf cyclohexane = 20.0 C m-1.
A) 182
B) 18.0
C) 89.3
D) 160
E) 360
a 4.82-gram sample of a compound is dissolved in enough water to form 100.0 ml of solution. this solution has an
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What is the enthalpy of this reaction? Assume that no heat is lost to the surroundings or to the coffee cup itself and that the specific heat of the solution is the same as that of pure water.
What liquid is insoluble in water and soluble in cyclohexane and alcohol; and has a boiling pint of 58 degress Celsius at 670 mm Hg.
A solution of ethanol (C2H5OH) in water is prepared by dissolving 65.8 mL of ethanol (density = 0.79 g/cm3) in enough water to make 250.0 mL of solution.
for each trial enter the amount of heat gained by the chemical system of ammonium nitrate qrxn. the specific heat of
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