Question

15.00 mL sample of a solution is 0.04 M in Sn2+ and xM in Fe2+. Both are easily oxidised by Cr2​O72−​ in acidic solution to Sn4+ and Fe3+ and itself reduced to Fe3+. 18.0 mL of 0.125 M Cr2​O72−​ is required. Thus, x is:

A

0.410

B

0.205

C

0.820

D

1.640​

Answer 1

Answer:

B 0.205 is the answer of this question

Answer 2

Answer:

c. 0.820 is the correct answer