Examples are sodium carbonate and potassium acid phthalate which are used to standardize acid and base solutions.

例如碳酸钠和邻苯二酸氢钾，分别用来标定酸和碱溶液。

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Examples are sodium carbonate and potassium acid phthalate which are used to standardize acid and base solutions.

例如碳酸钠和邻苯二酸氢钾，分别用来标定酸和碱溶液。

youdao