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When 200mL solution of NaOH and NaCO(3) ...

When 200mL solution of `NaOH and NaCO_(3)` was first titrated with N/10 HCl in presence of HPh, 17.5mL were usedtill end point is obtained. After this end point MeOH was added and 2.5mL of same HCl were required to attain new end point. The amount NaOH in mixture is:

A

0.06g per 100mL

B

0.06g per 200mL

C

0.05 g per 100mL

D

0.012 g per 200mL

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The correct Answer is:
A
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