An element X forms an iodide 1XI32 and a chloride 1XCl32.The iodide is quantitatively converted to the chloride whenit is heated in a stream of chlorine:2 XI3 + 3 Cl2¡2 XCl3 + 3 I2If 0.5000 g of XI3 is treated with chlorine, 0.2360 g of XCl3 isobtained. (a) Calculate the atomic weight of the element X.(b) Identify the element X.

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Q: What is the mass percentage of O in C₃H₈O₂? A) 21.03% B) 57.94% C) 72.58% D) 42.06%

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Q: Synthesis the following reaction: 1 зон + Но

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.