Question

5g of NaOH in 500g of water. Find the molality.​

Answer 1

$\huge\mathfrak\red{Answer :) }$

The molecular weight of NaOH is 40 g/mol.

The number of moles of NaOH

⟹ 40 g/mol

⟹ 5 g

⟹ =0.125 moles.

⟹ 500 ml water corresponds to0.500 L.

⟹ The molarity of the solution =

⟹ 0.500 L

⟹ 0.125 moles

⟹ =0.25 M