Question

Calculate the morality of NaOH solutions where 40g of NaOH dissolved in 800g of water

Answer 1

Answer:

its molality.

molecular mass of NaOH=23+16+1=40 g/mol

no. of moles of NaOH=40/40=1 mol

Molality of the solution = no.of moles of

solute/mass of solvent in Kg

molity=1/800*10^-3=1000/800=1.25