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单词 Endpoint determination
释义

Endpoint determination

中文百科

当量点 Equivalence point

(重定向自Endpoint determination)

当量点(英文:equivalence pointstoichiometric point),指的是酸碱中和滴定时,被滴定溶液中酸的克当量数等于碱的克当量数的那一刻,此时酸与碱恰好完全中和。但当量点不一定会呈中性,必须由产生的盐类决定。当强酸、强碱滴定时,当量点约呈中性;当强酸、弱碱滴定时,当量点呈酸性;当强碱、弱酸滴定时,当量点呈碱性。

英语百科

Equivalence point 当量点

(重定向自Endpoint determination)

The equivalence point, or stoichiometric point, of a chemical reaction is the point at which chemically equivalent quantities of acid and base have been mixed. In other words, the moles of acid are equivalent to the moles of base. It can be found by means of an indicator, most often phenolphthalein.

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更新时间:2025/6/16 17:41:42