1. Find the Molar Mass of NaOH:

* Sodium (Na): 22.99 g/mol

* Oxygen (O): 16.00 g/mol

* Hydrogen (H): 1.01 g/mol

* Total molar mass of NaOH: 22.99 + 16.00 + 1.01 = 40.00 g/mol

2. Use the Conversion Factor:

* 1 mole of NaOH = 40.00 g of NaOH

3. Set up the Calculation:

* (83 g NaOH) * (1 mol NaOH / 40.00 g NaOH) = 2.075 moles of NaOH

Therefore, 83 grams of sodium hydroxide is equal to 2.075 moles of NaOH.