llustration 17 3 2 g of pyrolusite was treated with 50 mL of

Last updated: 7/4/2023

llustration 17 3 2 g of pyrolusite was treated with 50 mL of 0 5 M oxalic acid and some sulphuric acid The ox acid left undecomposed was raised to 250 mL in a flask 25 mL of this solution when treated 0 02 M KMnO4 required 32 mL of the solution Find the of MnO in the sample and also percentage of available oxygen plution