How do you calculate the pH and pOH of 0.010 M of Ca(OH)2 solution?

To calculate the pH of a 0.010 M Ca(OH)₂ solution, first recognize that calcium hydroxide dissociates in water to produce two hydroxide ions (OH⁻) for each formula unit, resulting in a concentration of 0.020 M OH⁻. Using the formula pOH = -log[OH⁻], calculate pOH as -log(0.020) ≈ 1.70. To find the pH, use the relationship pH + pOH = 14, yielding pH = 14 - 1.70 = 12.30.