What Is the PH of 1 M HCl?
Last Updated Mar 31, 2020 3:08:37 AM ET
The pH of 1 M hydrochloric acid is zero. The reason is that pH is defined as negative 1 times the log base 10 of [H+], or the proton concentration in moles per liter. Stated another way, 10 raised to the 0 power equals 1.
Pure water has a proton concentration of 10 ^-7 M, and this corresponds to a pH of 7. As a solution becomes more acidic, its pH lowers. A solution with a pH of 6 has 10 times as many protons as a neutral solution at pH 7. A highly acidic solution such as battery acid can have a pH of zero, which means it has 10 million times as many protons as a sample of pure water.
More From Reference
Will 5G Impact Our Cell Phone Plans (or Our Health?!)
The Secret Science of Solving Crossword Puzzles
Racist Phrases to Remove From Your Mental Lexicon
Is the Coronavirus Crisis Increasing America's Drug Overdoses?
Fact Check: What Power Does the President Really Have Over State Governors?
Festival of Sacrifice: The Past and Present of the Islamic Holiday of Eid al-Adha