The H ion concentration of a solution is 4×10^-5 M then the OH ion concentration of the same solution is
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Calculate hydrogen ion concentration by taking 10 to the power of the negative pH. For example, for a solution of pH 6.5, the hydrogen ion concentration would be 1 * 10^-6.5, which equals 3.16 * 10^-7........ Scientists have defined pH as a logarithmic shortcut for hydrogen ion concentration.
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the concentration of hydrogen ions in a solution expressed usually in moles per liter or in pH units and used as a measure of the acidity of the solution indicator dyes for narrow ranges of hydrogen-ion concentration.
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