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Grade: 11
        what volume of decinormal k2cr2o7 solution would be needed to convert 1.19g of tin to stannic chloride in acidic medium
one year ago

Answers : (2)

Bhavya
askIITians Faculty
1060 Points
							Dear student
This is an example of redox titration.
SnCl2+ K2Cr2O7+ 14HCl → 3SnCl4+ 2CrCl3+ 2KCl + 7H2O
Now, we know the law of equivalence i.e.
equivalence of K2Cr2O7 = equivalence of SnCl2
N*V of K2Cr2O7 = equivalence of SnCl2 => mass/equivalent mass = (1.19 g/Molecular mass)*n-factor
On solving you will get your answer.Hope this helps
one year ago
Sarthak
11 Points
							It is tin to stannic chloride not stannous to stannic chloride so sn changes to sncl4 and so n-factor is 4
						
one year ago
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