90. Solving a chemistry problem

90. Solving a chemistry problem

1. Calculate the concentration of Al (mg/ml) based on the following data:
Solution Current at E=-1.7 V, μA
20.0 ml 0.2 M HCl 15 ml water 10.2 μA
20.0 ml 0.2 M HCl 10 ml sample solution 5 ml water 33.3 μA
20.0 ml 0.2 M HCl 10 ml sample solution 5.0 ml 6.32*10-2 M Al3 52.0 μA

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