Interpretation:
The empirical formula of the yellowish-white compound formed on the copper strip in the presence of iodine vapor is to be calculated.
Concept introduction:
An empirical formula tells the simplest whole-number ratio of atoms of each element present in a molecule but not the exact number of atoms of each element.
The steps to determine the empirical formula is as follows:
1. Determine the mass and moles of each element present in a molecule.
2. Write the calculated moles of each element as the subscript of the element’s symbol to obtain a formula for the compound.
3. If the moles are not in the whole number then divide the subscript by smallest subscribe to get the empirical formula.
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General Chemistry: Principles and Modern Applications (11th Edition)
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