Final answer:
To find the concentration of hydroxide ions in a solution, you can use the formula [OH-] = 10^-14 / [H3O+]. In this case, the concentration of hydroxide ions is approximately 3.7 x 10^-9 M. The solution is basic because the concentration of hydroxide ions is greater than 1 x 10^-7 M.
Step-by-step explanation:
To determine the concentration of hydroxide ion ([OH-]) in the solution, we can use the fact that water is a neutral solution when equal concentrations of hydronium ions ([H3O+]) and hydroxide ions are present.
The concentration of hydroxide ions can be calculated by using the formula [OH-] = 10^-14 / [H3O+].
Given that the concentration of hydronium ions is 2.7 x 10^-6 M, we can substitute this value into the formula to find the concentration of hydroxide ions.
Using the formula, we calculate that the concentration of hydroxide ions ([OH-]) is approximately 3.7 x 10^-9 M.
Since the concentration of hydroxide ions is greater than 1 x 10^-7 M, the solution is basic.