CBSE Class 11-science Answered
find moles
Asked by Harshal Saptarshi | 04 Sep, 2010, 11:41: PM
Expert Answer
Only FeSO4. 7H2O can be oxidised since Fe is in +2 oxidation state.
Hence,
Milliequivalents of KmnO4 used = milliequivalents of green vitriol
Let the mass in gram of hydrated ferroussulphate be x
( x divided by 278) * 1000= 5.4 *0.1
x = 0.15012
No. of moles of hydrated ferric sulphate in the mixture = (5.5 -0.15012 )/ (molecular wt of hydrated ferric sulphate)
= (5.5 -0.15012 )/ 552 = 0.0097 mole
Answered by | 06 Sep, 2010, 02:44: PM
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