Final answer:
The pOH of the solution is 4.08 and the pH is 9.92.
Step-by-step explanation:
The pH and pOH of a solution can be calculated by using the formula pH + pOH = 14. In this case, the given value of [OH-] is 8.3x10¹⁰ M. To find the pOH, we take the negative logarithm of the hydroxide ion concentration: pOH = -log([OH-]). Thus, pOH = -log(8.3x10¹⁰) = 4.08. To find the pH, we subtract the pOH from 14: pH = 14 - 4.08 = 9.92.