Iodine is prepared both in the laboratory and commercially by adding Cl2(g) to an aqueous solution containing sodium iodide:
2Nal(aq) + CI2(g) → l2(s) + 2 NaCl(aq)
How many grams of sodium iodide, Nal, must be used to produce 45.8 g of iodine, I 2?
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