Question

calculate the molarity of the solution containing 5gm of naoh in 450ml solution​

Answer 1

Mass of NaOH = 5g

Moles of NaOH = Given mass/Molar mass = 5/40 = 0.125 mol

Volume of solution = 450ml = 0.45L

Molarity = no. of moles of NaOH/Volume of solution in L = 0.125/0.45 = 0.28 mol/L