Question

8. Calculate the molarity and normality of solution Containing 0.4 g NaoH in 500 ml of water.​

Answer 1

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

Calculate the molarity and normality of solution Containing 0.4 g NaoH in 500 ml of water.