200mLs of a 0.016M solution of sodium hydroxide would require that ____milligrams of sodium chloride be mixed?

Question

200mLs of a 0.016M solution of sodium hydroxide would require that ____milligrams of sodium chloride be mixed and brought to the 200mL mark with water in a volumetric flask.

Answer 1

0 mgs of NaCl

0.200 L x 0.016 M = 0.0032 mol of NaOH

Molar mass of NaOH = 40.00

0.0032 mol x 40.00 g/mol = 0.128 g NaOH

128 mg of NaOH