Question

A given solution of NaOH contains 4.00 g of NaOH per litre of solution. Calculate the molarity of this solution.

Answer 1

Molar mass of NaOH = 40.00 g
4.00 of `NaOH=(4.00)/(40.00)` mole of NaOH = 0.1 mol NaOH
`"Molarity"= ("Molar of solute")/("Volume of solution in litre")=(0.1)/(1)=0.1 M`