calculate the hydroxide ion concentration,[OH-], for a solution with a pH of 11.43

Answer 1

Hello, Caitlyn,

pH and pOH are both defined as the negative log of the respective ion concentrations (in Molar). POH can be found from pH by the relationship pH + pOH = 14 (for water). In this case, pOH is 2.57. This means that the concentration of hydroxide ions would be 10^-2.57. Calculate this to find 2.69x10^-3 M.

Bob