Question

What will be the molarity of a solution containing
5g of sodium hydroxide in 250 ml solution​

Answer 1

Explanation:

1 mol NAOH = atomic mass of na + atomic mass of O + atomic mass of H =23+16+1 =40g.

5g of NAOH= 5/40 mol

NaoH=0.125 mol of naoh

250 ml solution= 250/1000 =0.25 L

Now,molarity= no. of moles of solute/total volume of the solvent

0.125/0.25=0.5 mol/L