Определение рН потенциометрическим методом
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![Константа кислотности (Ка) и рН для слабых кислот pH=1/2(lgKa-lg[HA])](https://sun9-25.userapi.com/uRGP8_lLN1hE9A5bv_ipAxoaEVRahj9w0C-Csg/iE0K2H3BdIA.jpg)
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