The following data were obtained in the construction of a calibration plot for the determination of ruthenium (VI) using a polarographic method: Ruthenium (VI) Concentration (μg/ml) Limiting Current...

The following data were obtained in the construction of a calibration plot for the determination of ruthenium (VI) using a polarographic method:

1.2702g of a dry solid sample containing an unknown amount of Ru⁶⁺
was dissolved in aqueous solution and made up to the 250ml mark. 20.0ml of this solution were further diluted to 50ml. A current reading of 151.2μA was obtained for this latter solution. Using a linear graphical method, calculate the percent-by-weight (%w/w) of Ru⁶⁺
in the unknown solid sample.

Can you show all the steps of the solution