A 1.50 g sample of an iron containing compound was dissolved in 100.0 ml of solution. A

Question:

A 1.50 g sample of an iron containing compound was dissolved in 100.0 ml of solution. A 2.00 ml portion of this solution was placed in a 100 ml volumetric flask and diluted to the mark with de-ionized water. The iron concentration of this dilute solution was determined to be 0.00112 M. what percent of this compound is iron?