The molar ratio of (6 moles of NaBr)/(1 mole of Fe₂S₃) is correct based on the balanced chemical equation.
Balanced chemical reaction
The balanced chemical reaction is given as;
2FeBr₃ + 3Na₂S → Fe₂S₃ + 6NaBr
From the balanced chemical reaction above, 6 moles of NaBr will also correspond to 1 mole of Fe₂S₃.
Thus, the molar ratio of (6 moles of NaBr)/(1 mole of Fe₂S₃) is correct based on the balanced chemical equation.
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