Sodium hydroxide (40g/mol) is available commercially as a 50% by weight aqueous solution. Calculate the molality
of this sodium hydroxide solution
1 50% by weight of NaOH – 50g of NaOH in 100 g of solution – Mass of solvent = 100 -50 = 50g = 50 kg = 0.05kg 1000 0 Molar mass of NaOH = 40 g mol 2 No. of modes of NaOH = 509 40 9 / mel = 1. 25…Science