In chemistry, pH (/piːˈeɪtʃ/ pee-AYCH), also referred to as acidity or basicity, traditionally denotes “potential of hydrogen” (or “power of hydrogen”). It’s a scale used to specify the acidity or basicity of an aqueous solution. H values than basic or alkaline options. At 25 °C (77°F), solutions with a pH lower than 7 are acidic, […]