Chemistry Challenge-2
1.6 g of pyrolusite ore was treated with 50 ml of 0.1 N oxalic acid and some sulphuric acid. The oxalic acid left undecomposed was raised to 250 ml in a flask. 25 ml of this solution when titrated with 0.1 N KMnO₄ required 32 ml of the solution. If the percentage of pure MnO₂ is 'K' and percentage of available Oxygen is 'T' then value of (K/T) ?
The answer is 5.4333333.
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