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ph值是什麼
ph值是什麼
更新时间:2025-09-09 11:03:56

  1、酸堿度描述的是水溶液的酸堿性強弱程度,用pH來表示。熱力學标準狀況時,pH=7的水溶液呈中性,pH7者顯堿性。

  2、pH範圍在0~14之間,隻适用于稀溶液,氫離子濃度或氫氧根離子濃度大于1mol/L的溶液的酸堿度直接用濃度表示。

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