InterviewSolution
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InterviewSolution
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A sample of hydrazine sulphate `(N_(2)H_(6)SO_(4))` was dissolved in `100 mL` water. `10 mL` of this solution was reacted with excess of `FeCl_(3)` solution and warmed to complete the reaction. Ferrous ions formed were estimated and it required `20 mL` of `M//50 KMnO_(4)` solutions. Estimate the amount of hudrazine sulphate in one litre of solution. Given `4Fe^(3+)+N_(2)H_(4)rarrN_(2)+4Fe^(2+)+4H^(+)` `MnO_(4)^(-)+5Fe^(2+)+8H^(+)rarrMn^(2+)+5Fe^(3+)+4H_(2)O` |
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Answer» 20 " mL of " `(M)/(50)KMnO_4` `=(20)/(50)m" mol of "KMnO_4` `=(2)/(5)xx5m" Eq of "KMnO_4` `=2 m" Eq of "Fe^(2+)=2 m" mol of "Fe^(2+)` `=(2)/(4)m" mol of "N_2H_4` `=0.5xx10^(-3)" mol of "N_2H_6SO_4` `=0.5xx10^(-3)xx130g of N_2H_6SO_4` `=0.065 g i n 10 mL` `=6.5 g i n 1L=6.5gL^(-1)` |
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