Answer:- Molarity of the solution is 0.4M.
Solution:- Molarity is moles of solute per liter of solution.
8.0 grams of NaOH are in 0.5 L of solution. Let's convert grams to moles and divide by liters to get the molarity of the solution.
Calculations for moles of NaOH:
[tex]8.0gNaOH(\frac{1mol}{40g})[/tex]
= 0.2 mol NaOH
Calculations for molarity:
[tex]\frac{0.2mol}{0.5L}[/tex]
= 0.4M
M stands for molarity.
So, the molarity of the NaOH solution is 0.4M.