The empirical formula of the metal iodide is Cr2I.
Mass of Chromium = 23.98
Molar Mass of Chromium = 51.9961
= 0.461 mol
Molar Mass of iodide = 126.9
= 199.6-23.88/126 = 1.394
The ratio between
Chromium and iodinei is1:2.So, the empirical formula is therefore Cr2I
Empirical formula of a chemical compound is the simplest whole number ratio of atoms present in a compound.[1] A simple example of this concept is that the empirical formula of sulfur monoxide, or SO, would simply be SO, as is the empirical formula of disulfur dioxide, S2O2. Thus, sulfur monoxide and disulfur dioxide, both compounds of sulfur and oxygen, have the same empirical formula. However, their molecular formulas, which express the number of atoms in each molecule of a chemical compound, are not the same.
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