The correct answer is Potenz.p stands for Potenz, Which means power in German.pH is the negative log of hydrogen ion concentration in a water-based solution.pH is an abbreviation for "power of hydrogen" where "p" is short for the German word for power, potenz and H is the element symbol for hydrogen.Additional InformationThe "pH" value is an approximate number between 0 and 14 that indicates whether a solution is acidic, basic or neutral.At pH 7, the substance or solution is neutral.If pH >7, the solution is basicIf pH < 7, the solution is acidic.