Answer : The mass of needed are, 44.5 grams.
Explanation :
First we have to calculate the moles of Na.
Now we have to calculate the moles of NaCl.
The balanced chemical reaction is:
From the reaction, we conclude that
As, 2 mole of produces from 2 mole of
So, 0.761 mole of produces from 0.761 mole of
Now we have to calculate the mass of
Molar mass of = 58.5 g/mole
Therefore, the mass of needed are, 44.5 grams.