Sodium Hydroxide (40g/Mol) Is Available Commercially As A 50% By Weight Aqueous Solution Calculate The Molality

Question

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