Question

what is molarity of a solution which has 4g of sodium hydroxide in 500 ml of water​

Answer 1

Explanation:

Molarity of solution (M)..

=Moles of NaOH Volume of solution in litres

=0.1 mol0.5L=0.2mol L-1=0.2M.

Answer 2

Answer:

Molarity = 4/40* 1000/500

= 1/10*2

= 1/5

= 0.2 Molar.