EXPERIMENT3 - 43.209g Mass of Al 43.209-41.489= 1.72g of Al...

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EXPERIMENT #2: RESOLUTION OF MATTER INTO PURE SUBSTANCES, II. FRACTIONAL CRYSTALLIZATION Eliot Sanford Lab Partner: Ranjita Bandi CH 1211-19 Instructor: Shashank Kulkarni Wednesday 3:00-5:50 September 19, 2007
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Experiment 3 Data and Calculations: Resolution of Matter into Pure Substances, II. Fractional Crystallization a) Mass of filter paper & watch glass 39.748g b) Mass of filter paper & watch glass 41.489g Separation of Al Mass of sample + 150-mL beaker 78.911g Mass of sample 10.000g Mass of Al + filter paper
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Unformatted text preview: 43.209g Mass of Al 43.209-41.489= 1.72g % of Al in sample 1.72/10.00= 17.2g Separation of KNO 3 Mass of 150 m-L beaker (a) + KNO 3 + filter paper 49.759g Mass of KNO 3 recovered 8.211g % of sample recovered as KNO 3 8.211/10.00= 82.11g Analysis of Purity of KNO 3 Mass of 50 m-L beaker (b) + KNO 3 + filter paper 47.672g Mass of KNO 3 used in analysis 47.959-47.872= 0.287g Percentage of CuSO 4 ∙5H 2 O present in KNO 3 0.287/10.00= 2.87g...
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