Final answer:
To calculate the molar concentration of a NaOH solution, divide the number of moles of NaOH by the volume of the solution in liters.
Step-by-step explanation:
The molar concentration of the NaOH solution can be calculated using the formula:
molarity = moles of solute / volume of solution (in liters)
In order to use this formula, we need to know the number of moles of NaOH and the volume of the solution.
From the information given, we can determine the moles of NaOH and the volume of the solution. Let's start with the moles of NaOH:
moles = mass of NaOH / molar mass of NaOH
Next, let's convert the given volume of the solution to liters:
volume of solution in liters = volume of solution in dm³ / 1000
Now we have all the required information to calculate the molar concentration of the NaOH solution:
molarity = moles of NaOH / volume of solution (in liters)
Let's substitute the values and calculate the molar concentration.