SO chlorine gas bubbled through water produces HCl acid. Presumably the chlorine ions split open the Hydrogen off the H2O molecule so what happens to the OH- radical produced why doesnt that reduce the pH of that solution seeking out further created protons in solution turning them back into water again changing the ph from say 2 back to 7

  • $\begingroup$ Under intense light, some of what you describe may happen. But actually, $\ce{Cl2}$ will disproportionate to $\ce{Cl-}$, $\ce{H+}$ and $\ce{HOCl}$. $\endgroup$ – TAR86 Feb 7 '18 at 6:54
  • $\begingroup$ Thanks for contributing to be fair this was a strange fever dream idea running through my head at 4am so I appreciate sense thanks again $\endgroup$ – iain dont call me Lain Feb 8 '18 at 1:25

When dissolved in water, chlorine gives an equilibrium mixture of chlorine, hypochlorous acid ($\ce{HOCl}$), and hydrochloric acid ($\ce{HCl}$):

$$\ce{Cl2 + H2O <=> HOCl + HCl}$$

In acidic solution, the major species are $\ce{Cl2 and HOCl}$ whereas in alkaline solution, effectively only $\ce{ClO-}$ (hypochlorite ion) is present (this is chlorine bleach). Very small concentrations of $\ce{ClO2-, ClO3-, and ClO4-}$ are also found. (source: Wikipedia)

  • 4
    $\begingroup$ Please don't simply copy text from Wikipedia, as it might be considered plagiarism. Could you add a link to the specific article you took the text from? $\endgroup$ – pentavalentcarbon Feb 7 '18 at 5:02
  • 1
    $\begingroup$ en.wikipedia.org/wiki/Water_chlorination $\endgroup$ – James Gaidis Feb 8 '18 at 19:13
  • $\begingroup$ I thought giving the reference disproved plagiarism. $\endgroup$ – James Gaidis Feb 8 '18 at 19:14

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.