Answer :

regalmocha17

Sodium Chloride = NaCl

One mole of sodium: 22.99g/mol

One mole of chlorine: 35.45g/mol

22.99g/mol Na + 35.45g/mol Cl = 58.44g/mol NaCl

58.44g/mol  x 20.4mol = 1192.176g

closest answer = 1192g

1192g of NaCl should be weighed out