A student determines the molar mass of acetone, CH3COCH3, by themethod used in this experiment. She found that theequilibrium temperature of a mixture of ice and water was 1.0degrees C on her thermometer. When she added 11.1 g ofher sample to the mixture, the temperature, after thoroughstirring, fell to -3.0 degrees C. She then poured offthe solution through a screen into a beaker. The mass ofthe solution was 90.4 g.
a) What was the freezing point depression?
b) What was the molality of acetone? I need help especially withthis one.
.
c) How much acetone was in the decanted solution?
d) How much water is in the decanted solution?
e) How much acetone would there be in a solution containing 1 kg ofwater and acetone at the same concentration as she had in herexperiment?
f) What did she find to be the molar mass of acetone, assuming shemade the calculation properly?
A student determines the molar mass of acetone, CH3COCH3, by themethod used in this experiment. She found that theequilibrium temperature of a mixture of ice and water was 1.0degrees C on her thermometer. When she added 11.1 g ofher sample to the mixture, the temperature, after thoroughstirring, fell to -3.0 degrees C. She then poured offthe solution through a screen into a beaker. The mass ofthe solution was 90.4 g.
a) What was the freezing point depression?
b) What was the molality of acetone? I need help especially withthis one.
.
c) How much acetone was in the decanted solution?
d) How much water is in the decanted solution?
e) How much acetone would there be in a solution containing 1 kg ofwater and acetone at the same concentration as she had in herexperiment?
f) What did she find to be the molar mass of acetone, assuming shemade the calculation properly?
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