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4 g of a mixture of NaCl and Na(2)CO(3) ...

4 g of a mixture of NaCl and `Na_(2)CO_(3)` were dissolved in water and volume made up to 250 mL. 15 mL of this solution required 50 mL of `N//10` HCl for complete neutralisation. Calculate the percentage composition of the original mixture.

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The correct Answer is:
`NaCl=33.75 %, Na_(2)CO_(3)=66.25%`
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