student prepared a cereal sample solution using a procedure similar to that in Lab 5.  The original sample solution was diluted by a factor of two, and then the absorbance of the diluted sample solution was measured and recorded as (2.0x10^-1).  Use the following calibration plot and the dilution factor to determine the concentration of iron, in unit of M, in the original cereal sample solution.  The trendline (linear regression) as displayed on the plot is y = 11898x - 0.0112.

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