If one mole of Ba(OH)₂ is added to enough water to make 10 liters of solution, the pH of the resulting solution is ________. A) 13.3 B) 1.0 C) 0.7 D) 13.0 E) 12.5

Question

Quizplus · Accepted Answer

Ba(OH)₂ is a strong base and dissociates completely in water to produce 2 moles of OH⁻ ions per mole of Ba(OH)₂. Therefore, the concentration of OH⁻ ions in the solution is 0.2 M (since 1 mole in 10 liters is 0.1 M, and it produces 2 moles of OH⁻). The pOH is -log(0.2) ≈ 0.7, and the pH is 14 - 0.7 = 13.3.

If One Mole of Ba(OH)2 Is Added to Enough Water

If One Mole of Ba(OH)₂ Is Added to Enough Water