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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
2 years ago

Answers : (2)

Bhavya
askIITians Faculty
1277 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
2 years 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
						
2 years ago
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