Respuesta :

Answer: The molarity of the solution is 0.19 M

Explanation:

To calculate the molarity of the solution, we use the equation given as:

[tex]\text{Molarity}=\frac{\text{Mass of solute(in grams)}}{\text{Molar mass of solute(in g/mol)}\times \text{Volume of solution (in L)}}[/tex]

We are given:

Mass of NaOH = 11.5 g

Molar mass of NaOH = [tex][23+16+1]g/mol=40g/mol[/tex]

Volume of the solution = 1.5 Liters

Putting values in above equation, we get:

[tex]\text{Molarity of solution}=\frac{11.5g}{40g/mol\times 1.5L}=0.19mol/L=0.19M[/tex]

Hence, the molarity of the solution is 0.19 M