The calcium contained in a solution of 1.048g of a substance being analysed was precipitated with 25mL H_(2)C_(2)O_(4). The excess of C_(2)O_(4)^(2-) in one fourth of filrtate was back titrated with 5mLof 0.1025N KMnO_(4). To determine the conc. of H_(2)C_(2)O_(4) soloution, it was diluted foru folds and titrationof 25mLof sameKmnO_(4) solution. Calculate % of Ca in substance.

The calcium contained in a solution of 1.048g of a substance being ana

1.	The calcium contained in a solution of 1.048g of a substance being analysed was precipitated with 25mL H_(2)C_(2)O_(4). The excess of C_(2)O_(4)^(2-) in one fourth of filrtate was back titrated with 5mLof 0.1025N KMnO_(4). To determine the conc. of H_(2)C_(2)O_(4) soloution, it was diluted foru folds and titrationof 25mLof sameKmnO_(4) solution. Calculate % of Ca in substance.
Answer» ANSWER :`14.94%`