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Is a ph = 7.25 solution acidic, basic, or neutral at 0 °c?

Deborah Edwards

in Chemistry

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Deborah Edwards on April 30, 2018

The answer is: the solution is acidic, because the pH value is less of 7.46.Kw (the ion product of water) at 0°C is 0.12·10⁻1⁴ mol2/dm⁶.Kw = [H⁺] · [OH⁻].[H⁺] = [OH⁻] = √0,12·10⁻1⁴ mol2/dm⁶.[H⁺] = [OH⁻] = 3,5·10⁻⁸ mol/L. pH = -log[H⁺].pH = -log(3,5·10⁻⁸ mol/L).pH = 7,46; neutral solution of 0°C.


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