sandralisa7808 sandralisa7808 20-10-2022 Chemistry contestada Calculate the mass of hydrated oxalic acid, (COOH)2.2H₂O crystals that need to be dissolved in 500 cm³ of distilled water to produce an acidic standard solution with a concentration of 1.5 mol dm-³. [Relative Atomic Mass: C = 12, H = 1, 0 = 16]