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8 cze 2024 · The pH of a solution of oxalic acid in water is determined by the acid dissociation constants (pKa) of oxalic acid. Oxalic acid is a polyprotic acid, which means it can donate more than one proton (H+) in solution.
Oxalic acid is an organic acid with the systematic name ethanedioic acid and chemical formula HO−C (=O)−C (=O)−OH, also written as (COOH)2 or (CO2H)2 or H2C2O4. It is the simplest dicarboxylic acid. It is a white crystalline solid that forms a colorless solution in water.
12 lip 2023 · The solubility of many compounds depends strongly on the pH of the solution. For example, the anion in many sparingly soluble salts is the conjugate base of a weak acid that may become protonated in solution. In addition, the solubility of simple binary compounds such as oxides and sulfides, both strong bases, is often dependent on pH.
14 sie 2020 · Calculate the pH of a solution prepared by adding 55.0 mL of a 0.120 M \(\ce{NaOH}\) solution to 100.0 mL of a 0.0510 M solution of oxalic acid (\(\ce{HO_2CCO_2H}\)), a diprotic acid (abbreviated as \(\ce{H2ox}\)). Oxalic acid, the simplest dicarboxylic acid, is found in rhubarb and many other plants.
18 lis 2023 · Oxalic acid is very strong for an organic acid (pH a1 = 4.14; pH a2 = 1.25). It will react with manganese dioxide to form manganese oxalate and carbon dioxide. MnO 2 + 2 H 2 C 2 O 4 → MnC 2 O 4 + 2 CO 2 + 2H 2 O. Oxalic acid is particularly notable for a number of insoluble salts it forms with common metals, such as magnesium and calcium.
Molecular weight: 90.0349. IUPAC Standard InChI:InChI=1S/C2H2O4/c3-1 (4)2 (5)6/h (H,3,4) (H,5,6) Copy. IUPAC Standard InChIKey:MUBZPKHOEPUJKR-UHFFFAOYSA-N Copy. CAS Registry Number: 144-62-7. Chemical structure: This structure is also available as a 2d Mol file or as a computed 3d SD file The 3d structure may be viewed using Java or Javascript.
Oxalic acid is a strong dicarboxylic acid found in plants and fungi, with the ability to form oxalate salts due to its metal chelating potential. It plays various roles in plants, including pH and metal ion homeostasis, plant defense, and pathogenesis factor in phytopathogenic fungi.
