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500 ml of 0.6 M Fe+2 solution is mixed with 400 ml of 0.1 M Cr207-2 solution in acid medium.the number of moles of cr+3 and fe+3 in the resultant solution respectively is? answer is:0.08,0.24 this was given in ts eamcet 2 please explain in a detailed way

500 ml of 0.6 M Fe+2 solution is mixed with 400 ml of 0.1 M Cr207-2 solution in acid medium.the number of moles of cr+3 and fe+3 in the resultant solution respectively is?
answer is:0.08,0.24 this was given in ts eamcet 2 please explain in a detailed way

Grade:12th pass

1 Answers

Vikas TU
14149 Points
4 years ago
moles x valence factor = moles  x valence factor
0.6 x 500 x 2  = n x 3
 n = 200 mm (For Fe 3+)
 
same do it for cr.
Cr2O72- has valency +6 and cr3+ has 3. 

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