Question

15.00 mL sample of a solution is 0.04 M in Sn 2+ and xM in Fe 2+ . Both are easily oxidised by Cr 2 ​ O 7 2− ​ in acidic solution to Sn 4+ and Fe 3+ and itself reduced to Fe 3+ . 18.0 mL of 0.125 M Cr 2 ​ O 7 2− ​ is required. Thus, x is

Answer 1

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