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# An element X forms an iodide (XI3) and a chloride (XCI 3). ISBN: 9780321809247 1

## Solution for problem 98 Chapter 3

Chemistry: A Molecular Approach | 3rd Edition

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Problem 98

An element X forms an iodide (XI3) and a chloride (XCI 3). The iodide is quantitatively converted to the chloride when it is heated in a stream of chlorine: 2 XI3 + 3 CI2—>2 XCI3 + 3 l2 If 0.5000 g of XI3 is treated, 0.2360 g of XCI 3 is obtained.; (a) Calculate the atomic weight of the element X.; (b) Identify the element X.

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Step 2 of 3

Step-by-step solution tep1 For the given reaction 2 XI3 + 3 CI2—>2 XCI3 + 3 l2 According to the reaction 2 moles of XI3 gives 2 moles of XCl3 . Step 2 To calculate the atomic weight of X We have to know first about atomic weight . Atomic weight, also called relative atomic mass, ratio of the average mass of a chemical element’s atoms to some standard. Since 1961 the standard unit of atomic mass has been one-twelfth the mass of an atom of the isotope carbon-12. An isotope is one of two or more species of atoms of the same chemical element that have different atomic mass numbers (protons + neutrons). The atomic weight of helium is 4.002602, the average that reflects the typical ratio of natural abundances of its isotopes.

Step 3 of 3

##### ISBN: 9780321809247

The full step-by-step solution to problem: 98 from chapter: 3 was answered by , our top Chemistry solution expert on 02/22/17, 04:35PM. The answer to “An element X forms an iodide (XI3) and a chloride (XCI 3). The iodide is quantitatively converted to the chloride when it is heated in a stream of chlorine: 2 XI3 + 3 CI2—>2 XCI3 + 3 l2 If 0.5000 g of XI3 is treated, 0.2360 g of XCI 3 is obtained.; (a) Calculate the atomic weight of the element X.; (b) Identify the element X.” is broken down into a number of easy to follow steps, and 66 words. Chemistry: A Molecular Approach was written by and is associated to the ISBN: 9780321809247. This textbook survival guide was created for the textbook: Chemistry: A Molecular Approach, edition: 3. Since the solution to 98 from 3 chapter was answered, more than 425 students have viewed the full step-by-step answer. This full solution covers the following key subjects: xci, element, iodide, chloride, identify. This expansive textbook survival guide covers 82 chapters, and 9454 solutions.

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