Obtaining the freezing point Depression of the sample in ice bath with one trail below:The solvent picked will be of water: Urea (CO(NH2)2 , 60.06 g/mol) Measurement: the empty 100 graduated cylinder is 144.422g; temp vs. solvent with water is weighed at 15.136g. The tempeture was -7 degrees, the results were -1.5 celsius. The urea weighed with H2O is 15.088g. Answer the following you see above: a) If you did not manage to get all of the solute to dissolve, would you expect thefreezing point to be higher or lower or unchanged than expected? What about themolar mass? b) If you were to repeat this experiment, how might you change some of the parameters you originally chose? If you have already made changes to your preliminary procedure to your in-lab procedure, what changes you make and why?
Obtaining the freezing point Depression of the sample in ice bath with one trail below:The solvent picked will be of water: Urea (CO(NH2)2 , 60.06 g/mol) Measurement: the empty 100 graduated cylinder is 144.422g; temp vs. solvent with water is weighed at 15.136g. The tempeture was -7 degrees, the results were -1.5 celsius. The urea weighed with H2O is 15.088g.
Answer the following you see above:
a) If you did not manage to get all of the solute to dissolve, would you expect the
freezing point to be higher or lower or unchanged than expected? What about the
molar mass?
b) If you were to repeat this experiment, how might you change some of the parameters you originally chose? If you have already made changes to your preliminary procedure to your in-lab procedure, what changes you make and why?
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