A compound containing chromium and silicon contains 73.52 mass percent chromium. Determine its empirical formula.
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Answer:Cr3Si2
Explanation:Percentage of Cr= 73.52
Atomic Mass of Cr=52
Percentage of Si= 100-73.52= 26.48
Atomic mass of Si=28
Moles of cr= 73.52/52= 1.413mol
Moles of si= 26.48/28=0.9157mol
Ratio of mass of crazy and si
=1.413:0.9157=3:2
Thus empirical formula is Cr3Si2
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