Question #2cd6b

Mar 27, 2017

27.6 grams

Explanation:

That depends on the reaction. For the sake of simplicity I'll assume a single replacement reaction in the form $2 {\text{NaI" + "X"_2 rarr 2"NaX" + "I}}_{2}$ where X represents bromine, chlorine, or fluorine.

Knowing that the molar mass of ${\text{I}}_{2}$ is $253.8 \text{g/mol}$ and that the molar mass of $\text{NaI}$ is $149.9 \text{g/mol}$,

$46.7 \text{g I"_2 xx (1"mol I"_2)/(253.8"g I"_2) xx (1"mol NaI")/(1"mol I"_2) xx (149.9"g NaI")/(1"mol NaI")=27.6"g NaI}$

Edit: $\text{X}$ is likely $\text{Cl}$ since the reaction of $\text{NaI}$ and ${\text{Cl}}_{2}$ is often used in the production of ${\text{I}}_{2}$