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Write the empirical formula of copper chloride based on the experimental data. E

ID: 596243 • Letter: W

Question

Write the empirical formula of copper chloride based on the experimental data. Express your answer as a chemical formula. In a student experiment, the empirical formula of a copper halide was found by adding aluminum metal to an aqueous solution of the halide. displacing copper metal. The copper metal was filtered, washed with distilled water, dried, and weighed: three separate determinations were performed. The copper halide solution contained 42.62 g of copper chloride per liter. The student recorded the following experimental data.

Explanation / Answer

CuCl3 the mass of copper in each trial and convert it to mass per liter A) 1.694 - 0.908 g Cu / 0.0496 L = 15.847 g Cu / L repeat for B and C compare your three results if they are fairly close, average them if one is pretty far off the others you probably should discard that value however, a glance tells me that your results should be tight subtract the value for Cu from the value for the compound (42.62) that gives the amount of chlorine then do a simple empirical formula calculation I ran the numbers and got CuCl3