Separating Mixtures: Lab Experiments & Methods

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The lab experiment involved separating a mixture of NaCl, NH4Cl, and SiO2 through heating and solubility methods. NH4Cl was sublimed first, followed by dissolving NaCl in water and evaporating it to obtain table salt. The remaining SiO2 was heated to achieve a constant mass. The discussion centers on whether the separation order can be altered, with the consensus suggesting that separating solids from liquids first is crucial for accurate measurements. The importance of the initial separation method is emphasized to ensure effective analysis of the components.
osirisgeek
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Greetings,
I have just done a lab in which we separated NaCl, NH4Cl, and SiO2.

To separate first the mixture was heated and the Nh4Cl sublimed (in which i measured teh content by mass loss)

Then I extracted the NaCl using soluability by adding water then evaporating the water leaving the Table salt to be weighed.

Last the wet Sio2 was left and it was just heated to get a constant mass.

Im trying to figure out if its possible to separate this in a differnt order, or will it not work properly. I am thinkings its not possible because you must first separate the solid and the liquid to properly measure the solids weight.

Does this seem right?
 
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by different order are you referring to, perhaps, dissolving the solid mixture in water first?
 
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