Post on 17-Dec-2015
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MOLAR MASS
MOLAR MASSAnita Yusrina Kulsum140210140039OutlineIntroductionMethodologyResultConclusionIntroductionGoal of The ExperimentDetermine the molar mass of nonvolatil and nonelectrolite solute through observation of the freezing point difference between solvent and solution.
Methodology
Ice Bath PreparationsBeaker 400ml was prepared
Ice and salt were filled into beaker
The instrument was combined as Figure5Freezing Point of Water (Solvent)
Reaction tube was weighed in a beaker
10 grams of water was added in a reaction tube
The reaction tube was placed in an ice bath
The instrument was combined again as Figure
The temperature was recorded every time interval (15 second)The temperature was constant at the freezing point
Freezing Point of Unknown Solute
The temperature was recorded every time interval (15 second) until constant
The reactiontube was placed back into ice bath
0,1-0,3 gram of solute was added quantitatively into the water in a reaction tubeReaction tube was taken and dried the outer of reaction tube
ResultConclusionThank You