Question

Sodium hydroxide is extremely soluble in water. At a certain temperature, a saturated solution contains 527 g NaOH(s) per liter of solution. Calculate the molarity of this saturated NaOH(aq) solution.

Answer 1

Answer: The molarity of solution is 13.175 M.

Explanation:

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

$\text{Molarity of the solution}=\frac{\text{Mass of solute}}{\text{Molar mass of solute}\times \text{Volume of solution (in L)}}$

We are given:

Mass of solute (sodium hydroxide) = 527 g

Molar mass of sodium hydroxide = 40 g/mol

Volume of solution = 1 L

Putting values in above equation, we get:

$\text{Molarity of solution}=\frac{527g}{40g/mol\times 1L}\\\\\text{Molarity of solution}=13.175M$

Hence, the molarity of solution is 13.175 M.