Understanding pH
* pH is a measure of the acidity or alkalinity of a solution.
* It is calculated using the following formula: pH = -log[H₃O⁺]
* where [H₃O⁺] is the concentration of hydronium ions (H₃O⁺) in moles per liter (M).
Calculation
1. Substitute the given concentration:
pH = -log(7.9 x 10⁻¹¹)
2. Use a calculator to solve:
pH ≈ 10.1
Answer: The pH of the solution is approximately 10.1.
Important Note: Since the pH is greater than 7, this solution is considered basic or alkaline.