1. Understand Molarity

Molarity (M) is a unit of concentration that represents moles of solute per liter of solution.

2. Calculate Moles of NaOH

* Molarity = moles of solute / liters of solution

* We know the molarity (1.53 M) and the volume (3.87 L). We can rearrange the equation to solve for moles:

* moles of NaOH = Molarity * liters of solution

* moles of NaOH = 1.53 M * 3.87 L = 5.92 moles of NaOH

3. Calculate Mass of NaOH

* We need the molar mass of NaOH. The molar mass is the sum of the atomic masses of each element in the compound:

* Na: 22.99 g/mol

* O: 16.00 g/mol

* H: 1.01 g/mol

* Molar mass of NaOH = 22.99 + 16.00 + 1.01 = 40.00 g/mol

* Now we can convert moles of NaOH to grams:

* mass of NaOH = moles of NaOH * molar mass of NaOH

* mass of NaOH = 5.92 moles * 40.00 g/mol = 236.8 g

Therefore, there are 236.8 grams of NaOH present in the solution.