A sample containing `0.4775` of `(NH_4)_2C_2O_4` and inert material was dissolved in water and made strongly alkaline wi

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Q 1159734614.     A sample containing `0.4775` of `(NH_4)_2C_2O_4` and inert material was dissolved in water and made strongly alkaline with `KOH`, which converted `NH_4^+` to `NH_3`. The liberated ammonia was distilled into exactly `50.00` mL of `0.050` `M` `H_2SO_4.` The excess `H_2SO_4` was back titrated with `11.3` mL of `0.1214` `M` `NaOH`. Find the percentage of `(NH_4)_2C_2O_4`. (Mol. wt. of `(NH_4)_2C_2O_4= 124)`


A

`54.2`

B

`47.1`

C

`33.7`

D

`59.3`

HINT


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

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