Basicity - Enkiseyde

This refers to the number of hydrogen atoms contained in one molecule of an acid that can become hydrogen ions in an aqueous solution. In a neutralization reaction, it indicates the degree of ability to neutralize the opposing base. Acids with a basicity of 1 (HCl, CH ₃ -COOH, etc.) are monobasic acids, those with a basicity of 2 are dibasic acids (H ₂ SO ₄ , H ₂ CO ₃ , etc.), those with a basicity of 3 are tribasic acids (H ₃ PO ₄ , etc.), and those with a basicity of n are generally called n- basic acids. [See alternative terms] Acidity

Source: Morikita Publishing "Chemical Dictionary (2nd Edition)" Information about the Chemical Dictionary 2nd Edition

酸の1分子中に含まれる水素原子のうち，水溶液で水素イオンとなりうるものの数をいう．中和反応において，相手の塩基を中和する能力の度合を示す．塩基性度1の酸(HCl，CH₃-COOHなど)を一塩基酸，2のものを二塩基酸(H₂SO₄，H₂CO₃など)，3のものを三塩基酸(H₃PO₄など)，一般にnのものをn塩基酸という．[別用語参照]酸度

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