PH value: The pH value of vinegar, 2.9, also known as the hydrogen ion concentration index, is a measure of the hydrogen ion activity in the solution and also a measure of the pH value of the solution in the usual sense. This concept is 1909 by Danish biochemist s? 0? Three people. Peter Laurits? 0? 3 Renson proposed. P stands for German potenz, strength or concentration, and H stands for hydrogen ion (H+). Sometimes pH is also written in Latin as pondus hydrogenii. Generally speaking, the pH value is a number between 0 and 14. When pH; 7, the solution is alkaline, pH=7, the solution is neutral. Define the pH value of some common substances. Acidic solution of lead-acid battery

What is the pH value and concentration of vinegar?