A solution has a [H^+] of 1.0times 10^-5M 6. What is its [OH^-] 7. What is its pH? 8. What is its POH?

6. To find the concentration of hydroxide ions , we can use the ion product constant for water, , which is at 25°C. The relationship between and is given by the equation . Rearranging the equation, we get . Substituting the given value of , we have .7. The pH of a solution is defined as the negative logarithm of the hydrogen ion concentration: . Substituting the given value of , we have .8. The pOH of a solution is defined as the negative logarithm of the hydroxide ion concentration: . Substituting the calculated value of , we have .