Which is the best way to prepare 500 mL of a 2.00 M solution of aqueous H2SO4 from deionized water ( — Laboratory Chemistry Question
Question
Which is the best way to prepare 500 mL of a 2.00 M solution of aqueous H2SO4 from deionized water (M = 18.02, density = 1.00 g mL–1) and concentrated H2SO4 (M = 98.08, density = 1.84 g mL–1)?
Weigh 98.1 g concentrated sulfuric acid into a 500-mL beaker, then slowly add deionized water to the beaker, with occasional swirling, until the liquid reaches the 500 mL mark.
Weigh 98.1 g concentrated sulfuric acid into a 500-mL volumetric flask, slowly add deionized water to the mark, and mix.
Weigh 98.1 g concentrated sulfuric acid into a 100-mL beaker, then slowly pour the H2SO4 into a 500-mL beaker with about 250 mL deionized water in it. Pour this solution into a 500-mL volumetric flask and fill to the mark with deionized water and mix.
Weigh 446.6 g deionized water into a 500-mL volumetric flask, fill to the mark with concentrated sulfuric acid, and mix.