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Chemistry: The Molecular Nature of Matter and Change | 5th Edition | ISBN: 9780073048598 | Authors: Martin S. Silberberg
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Elements X (green) and Y (purple) react according to the following equation: X2 _ 3Y2

Chapter 3, Problem 3.137

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QUESTION:

Elements X (green) and Y (purple) react according to the following equation: X2 _ 3Y2 2XY3. Which molecular scene represents the product of the reaction?

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QUESTION:

Elements X (green) and Y (purple) react according to the following equation: X2 _ 3Y2 2XY3. Which molecular scene represents the product of the reaction?

ANSWER:

Step 1 of 3

Molecular formula

The number of moles of each element in a compound is represented using its molecular formula. The molecular formula of an unknown compound is obtained by multiplying the empirical formula with a whole number derived from its molar mass.

The molecular formula of a compound is unique as it represents the actual number of moles of elements in the compound. The empirical formula is derived from the percentage composition of the compound.

The sum of masses of atoms in the molecular formula gives the molar mass of a compound. Combustion analysis of an unknown compound is carried out to derive its molecular formula.

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