The equivalent weight of \( \mathrm{Na}_{2} \mathrm{~S}_{2} \mathrm{O}_{3} \) in the reaction \[...
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0The equivalent weight of \( \mathrm{Na}_{2} \mathrm{~S}_{2} \mathrm{O}_{3} \) in the reaction
\[
2 \mathrm{Na}_{2} \mathrm{~S}_{2} \mathrm{O}_{3}+\mathrm{I}_{2} \rightarrow \mathrm{Na}_{2} \mathrm{~S}_{4} \mathrm{O}_{6}+2 \mathrm{NaI}
\]
(A) \( M \)
(B) \( M / 8 \)
(C) \( M / 0.5 \)
(D) \( M / 2 \)
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