If the pH of a solution is 3.437, what is the hydrogen ion concentration in mol/L? Chemistry Acids and Bases pH calculations 1 Answer anor277 Jan 24, 2017 By definition, #pH=-log_10[H_3O^+]#............ Explanation: ........so #[H_3O^+]=10^(-3.437)*mol*L^-1# #=3.656xx10^-4*mol*L^-1# Answer link Related questions How do you determine ph of a solution? How do you determine pH at an equivalence point? How do you determine pH from molarity? What does alkalinity mean? What is a base? How do acid base indicators change color? What is a neutral pH? How does alkalinity affect pool water? Why is pH important in drinking water? How can I calculate the pH of a solution? See all questions in pH calculations Impact of this question 9515 views around the world You can reuse this answer Creative Commons License