11 - AP Chemistry Lab Separation of a Heterogeneous Mixture...

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AP Chemistry Lab Brockport High School NY USA Separation of a Heterogeneous Mixture Mr Keefer Introduction Mixtures consist of substances that do not react chemically. The proportions of these substances can vary in the mixture, and thus the mixture is said to be heterogeneous. These substances can be elements or compounds. Components of a mixture can be separated using one or more appropriate techniques. Typical separation techniques include decantation, sublimation, filtration, and extraction. Other techniques are available and depend on the substance = s characteristics. In this lab you will be given a heterogenous mixture of three substances. The mixture that you will separate contains three components, NaCl, NH 4 Cl, and SiO 2 . You will then determine the percentage of each substance in your mixture based on the mass of each as determined by your separation techniques. Materials balance, Bunsen burner, tongs, evaporating dishes, clay triangle, watch glass, 50mL or 100mL graduated cylinder, ring stands, iron ring, glass stirring rods, unknown mixture of sodium
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11 - AP Chemistry Lab Separation of a Heterogeneous Mixture...

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