Question 9.2 [ 3 marks] Calculate the number of moles of sulphuric acid used in the reaction above.

Sulphuric acid (H₂SO₄) is commonly used in various chemical reactions, and its calculation in moles is essential. To determine the number of moles, you primarily need the volume and concentration (molarity) of the sulphuric acid used. For example, if you have 50 mL of a 1 M solution, you can use the formula: moles = concentration (M) × volume (L). Thus, you'd have 1 mol/L × 0.050 L = 0.050 moles of H₂SO₄. When dealing with calculations, one common mistake is forgetting to convert milliliters to liters, as the molarity is often expressed in moles per liter. Always double-check your conversions to avoid errors!