A `2.0` g sample of a mixture containing sodium carbonate, sodium bicarbonate and sodium sulphate is gently heated till

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Q 1119767610.     A `2.0` g sample of a mixture containing sodium carbonate, sodium bicarbonate and sodium sulphate is gently heated till the evolution of `CO_2` ceases. The volume of `CO_2` at `750` mm Hg pressure and at `298` K is measured to be `123.9` mL. A `1.5` g of the same sample requires `150 mL` of (`M//10`) `HCl` for complete neutralization. Calculate the percentage composition of sodium carbonate and sodium bicarbonate in the mixture.
JEE 1992
A

`29.4%, 39.8%`

B

`18%, 54%`

C

`26.5%, 42%`

D

`32.5%, 38.5 %`

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Solution
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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