Answer : The mass of sodium iodide used to produced must be, 105.22 grams.
Explanation : Given,
Mass of = 89.1 g
Molar mass of = 253.8 g/mole
Molar mass of = 149.89 g/mole
First we have to calculate the moles of .
Now we have to calculate the moles of .
The balanced chemical reaction is,
From the balanced chemical reaction, we conclude that
As, 1 mole of obtained from 2 moles of
So, 0.351 moles of obtained from moles of
Now we have to calculate the mass of .
Therefore, the mass of sodium iodide used to produced must be, 105.22 grams.