The reaction is:
2 XI3 + 3 Cl3 → 2 XCl3 + 3 I2
From the equation: 2 mol XI3 produces 2 moles XCl3
An element X forms an iodide (XI3) and a chloride (XCl3). The iodide is quantitatively converted to the chloride when it is heated in a stream of chlorine: 2XI3 + 3Cl2 → 2XCl3 + 3I2 If 0.5500 g of XI3 is treated, 0.2596 g of XCl3 is obtained.
Calculate the atomic weight of the element X.
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