First question is the H2SO4. How much. We’ll need enough to make 2 N, which is 1 M (because there are 2 acidic protons). The molecular weight of H2SO4 is 98 g/mole. Concentrated sulfuric is 98% (usual source) and a density of 1.84 g/mL. For a 1 M solution in 1 L, we’d need 98 g, but, this is for 500 mL so only 49 g of H2SO4 will be required. 49 g / 1.84 g/mL is 26.63 mL. However, since this is 98% sulfuric acid, we will need 26.63/0.98 = 27.17 mL.
OK, so you will need 27.17 mL of 98% sulfuric acid (if you have some other percentage, adjust the volume). Now, get yourself a 500 mL volumetric flask and fill it 3/4 full with water. Carefully, slowly, add the H2SO4 to the water in the volumetric flask (it will be exothermic). After the H2SO4 is added, let the solution cool. Now, add water to the mark. Let the whole cool, again, to room temp. No, add water to the mark, invert to mix a few times, and you are done.