What is the molarity of this solution ?

Question

4.00 g of solid NaOH are dissolved in water to give a final solution of 22.8 mL .
What is the molarity of this solution ?

Enter a numeric answer only, no units.

Answer 1

since Molarity = moles/liters

first change the 4.00g of NaOH to moles of NaOH by dividing by the molecular mass of NaOH.

change mL to liters

Divide the moles by the liters to get molarity