Calculate the hydroxide ion concentration, the pOH, and the pH of the solution made when 1.00 g barium hydroxide dissolves in enough water to produce 500.0 mL of solution.
Strategy

First, calculate the amount of barium hydroxide from the mass and molar mass. Next, calculate the amount of hydroxide ion from the coefficients of the chemical equation; then calculate the concentration and pH from the amount of hydroxide ion and the volume of the solution.