What is the number of moles of sodium hydroxide in 2.50L of 0.100M NaOH?

Here volume of NaOH solution=2.50L

Concentration of NaOH solution= 0.100M

We know, Molarity= (amount of substance in mol)÷Volume of solution in L

Now, volume x concentration= 2.50Lx0.100mol/L

=0.25mol

So, moles of sodium hydroxide in 2.50L of 0.100M NaOH is 0.25moles. (Ans)