1- A mixture of sodium chloride, ammonium chloride and sand was subjected to a s

Question

1- A mixture of sodium chloride, ammonium chloride and sand was subjected to a separation. If a 2.336g mixture was separated to isolate 1.104g of sodium chloride, and 0.375g of sand, what was the percentage of each component of the mixture?

2- given the following data, describe how you would separate iodine, glass and potassium phosphate?

substance                   behavior upon heating                     solubility in water

iodine                              sublimes                                       soluble

glass                               solid                                               insoluble

lead(II) nitrate                 solid                                                soluble

Explanation / Answer

a)0.375 g/2.336 g =16.09 % is the percentage of sand
1.104 g/2.336 g = 47.26% is the percentage of sodium chloride
100% - (16.09+47.26) = 36.64% is the percentage of ammonium chloride

b)dissolve I2 , glass and potassium phosphate in water as glass is not soluble while the other two are decant the solution to obtain glass.

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