The results were tabulated in part c the sea sand had

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The results were tabulated... In part C, the sea sand had to be dried for the recovery calculations on the data sheet. To dry sea sand first the sand was placed into a clean beaker and was weighed. The wet sand was then transferred from the filter paper into the clean beaker. The beaker containing the sand was then placed onto the hot plate, until the sand had dried completely. The sand was then cooled to room temperature and weighed. The mass of the recovered sea sand was determined by subtracting the mass of the empty beaker from the mass of the beaker containing dry sea sand. The results were tabulated. For the Calculations part of the experiment percent yield and percentages of all substances was found. The percent yield was found by dividing the mass of the recovered solids by the mass of the mixture, then multiplying the answer by 100. The percentage yield for this experiment was tabulated. The makeup of that result is divided up between NaCl and sea sand. It is a reasonable percent yield but there is always room for error in lab experiments. Some errors that could have been made in this experiment include: 1. Not measuring the unknown mixture in the beginning of the experiment. 2. Rushing through the experiment by not letting the sand fully dry or not letting the NaCl dissolve in the water. 3. In the lab book it was stated not to let the water boil during the heating of the filtered water. In the lab though the water was allowed to be boiled, which may have disturbed the experiment. 4. Reasons why percentage yield may have differed from 100% could also be human error in calculations and the mass of the recovered solids was less than the mixture %. Conclusion : A homogeneous mixture is uniform mixtures that have properties throughout the given samples, and it can separate by filtration or physical procedures. In our laboratory, we separate salt (NaCl) from sand by dissolving the saltin water because salt is soluble in water. We can separate salt from sand because salt is dissolved in water. The experiment was completed to a high degree of success. Familiarity with the methods of separating substances from one another using decantation, extraction, and sublimation techniques was gained, and the material was recovered to a reasonable degree of accuracy.
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