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What volume of HNO3 is required that will convert one gram of of FeSF4. 7H20 into Fe 3+. Specific gravity of HnO3 solution is 1.05 gram per ml and it contains 12.6% weight by weight of HNO3. HNO3 is it self reduce to nitric oxide in the reaction

What  volume  of HNO3 is required that will convert one gram of of FeSF4. 7H20 into Fe 3+. Specific gravity of HnO3 solution is 1.05 gram per ml and it contains 12.6% weight by weight of HNO3. HNO3 is it self reduce to nitric oxide in the reaction

Grade:11

1 Answers

Arun
25750 Points
3 years ago
Fe 
2+
 +HNO 
3
​ 
 +H 
+
 ⟶Fe 
3+
 +NO+H 
2
​ 
 O
                 (+5) (+2)
Number of equivalents of HNO 
3
​ 
 = Number of equivalents of Fe 
+2
 
V×1.05× 
100
8
​ 
 ×21= 
278
1
​ 
 
Therefore, V=0.89 mL.
Hence, volume of HNO 
3
​ 
  required = 0.89 mL

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