A weak acid ha, has a p k a of 5.0. if 1.0 mol of this acid and 0.1 mol of naoh were dissolved in one liter of water, 4.05 is final ph .
The term pH, which originally stood for "potential of hydrogen" (or "power of hydrogen"), is used in chemistry to describe how acidic or basic an aqueous solution is. Greater pH values are seen in basic or alkaline solutions than acidic solutions.
Since hydrogen ions are logarithmic, the pH scale shows how many of them are present in a solution in inverse proportion.
M = mol dm3, where. Acidic solutions have a pH under 7, while basic solutions have a pH over 7, at a temperature of 25 °C (77 °F). At this temperature, solutions with a pH of 7 are neutral (i.e., have the same amount of H+ and OH- ions, like pure water), meaning they don't react with one another. Temperature has an impact on the pH's neutral value.
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