# Chemical Formula for Indium

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At one time, it was thought that indium formed a chloride of formula InCl2. More recent work shows that the compound in question is actually In3[In2Cl9]. Determine the percentage by mass of indium according to each formula, and explain how the error could be made.

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For this question, you take one mole of this compound, the percentage by mass of indium will equal the mass of indium in one mole divide by the ...

#### Solution Summary

If you take one mole of this compound, the percentage by mass of indium will equal the mass of indium in one mole divide by the total molar mass for the compound. How this is determined is outlined and the equation is given but the student must finish the solution on his or her own.

$2.49