The pOH of a solution is 6.0. Which statement is correct? Use p O H equals negative logarithm StartBracket upper O upper H superscript minus EndBracket. and p H plus P O H equals 14.. The pH of the solution is 20.0. The concentration of OH– ions is 1.0 times 10 to the negative 8 moles per liter.. The concentration of OH– ions is 1.0 times 10 to the 6 moles per liter.. The pH of the solution is 8.0.