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August 30, 2014

Homework Help: Chemistry

Posted by Jim on Tuesday, January 29, 2013 at 6:57pm.

What would be the effect of each of the following on the calculated molecular weight of the solute?

a) some cyclohexane evaporated while the freezing point of pure cyclohexane was being measured. ( i think it would be higher)

b)Some cyclohexane evaporated after the solute was added. ( i think it would be lower)

c) a foreign solute was already present in the cyclohexane. (i think it would have no change)

d) the thermometer is not calibrated correctly. it give a temp that is 1.5 C too low at all temperatures. (i think it would be higher)

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