| HCl(aq) + NaOH(aq) -----> NaCl(aq) + H2O(l)
0.4mole....0.3125mole
0.3125......0.3125mole.......0.3125mole
-------------------------------------------------------------------
........................................ 0.3125mole
mass = 0.3125mole * 58.5 g/mole
= 18.28125 g
So, mass of sodium chloride is 18.28125 g. |